Here are 4 Core Elements to consider when Setting Goals:

Make sure your goals stand up to the following tests:

Are they realistic, specific and measurable,
and do you have a back-up plan
for when things don't go as expected?

Realistic

The goals you set have to be real in the context of your life.
They cannot be based on some ideal version of your real situation
and more importantly don't base them on some change you are ‘going' to make
that will give you more time. Set your first goals according to what your life looks like right now!
Look for changes that you can insert into your current schedule.
If you are too busy to cook--then don't plan to cook at home every day.
Start by finding healthy calorie controlled prepared foods that don't take a lot of time to prepare.

Specific

Make each goal very specific.
Make sure that both the steps to achieving it and that the results are readily observable
so there is no guesswork or grey in your ability to know what to do.

As an exanple: “Today I will weigh and measure the kind and amounts of food I eat
and immediately enter every bit of it into my computer food journal.”

Measurable

In the example I just gave.
it is easy to measure the extent to which you completed the goal. 

Back-Up Plan

Once you have set out some realistic, specific and measurable goals
you need to set up a second set that mirror these goals but are a little more forgiving.
These are useful when the unexpected happens.

So for example, sometimes the unexpected occurs.
For these occasions, instead of doing nothing
(which feels like failure and can trigger a bigger slide)
simply carefully note the kind and amounts of food eaten,
jot that estimated information down and then enter it in your computer food journal later.

While this is less than ideal it IS still part of "the plan" and thus will have you feeling
psychologically that you succeeded whereas skipping altogether would feel like failure.

During my endless search for the Positive,
it recently occurred to me ...

One great thing about using a computer software
food journal similar to DietPower is
that even if one didn't want to count calories or control portions,

...someday in the future, you could still be able to look back
at your personal data, and learn your accurate food amounts,
nutritional values and/or your eating patterns.

I have been making daily food entries into my DietPower journal for the past 6 years,
and I can access any day's food information from the past 6 years.

For Example, suppose I wanted to know exactly what and how much I ate
every Christmas Day or every Birthday or every Vacation for the past 6 years,
I can pull that data up and compare it.

I find this ability to access personal information to be very compelling. 

Being in Denial means:
“refusing to admit the truth or reality of something unpleasant”.

To succeed at weight-loss and maintenance of weight-loss
one must face and accept some essential unpleasant Truths.

One of these unpleasant Truths is: 

without some form of portion control,
an obese person cannot become normal size.

  Another of these unpleasant Truths is: 

 facing failures is necessary to achieve success.

Which is actually better, a Rule or a Suggestion?

A Rule is –

a prescribed guide for conduct or action;
an order or direction;
a regulating principle;
a usually valid generalization;
a standard of judgment.

To Suggest is -

Suggest stresses putting into the mind by association of ideas,
awakening of a desire, or initiating a train of thought

to seek to influence;
to mention or imply as a possibility;
to propose as desirable or fitting;
to offer for consideration;
to serve as a motive or inspiration for.

A Suggestion is –

The process by which a physical or mental state
is influenced by a thought or idea.

The process by which one thought leads to another
especially through association of ideas.

Even though the general scientific rule is "3500 calories = 1 fat lb",
that doesn't mean this loss (or gain) immediately shows on the scale.

Although, with effort, we can control what food goes into our body,
we cannot control what our body does with that food...
and the timing of how fat is lost is a very large part that we cannot control.

Our bodies are always shifting water about,
and the majority of our lean body weight is actually water.

Also, our bodies don't always react the same ways,
and just because we achieved the same result a few times,
doesn't mean the same behavior will always result in the same outcome.

I've found my predictions can be accurate IN GENERAL,
 but frequently are not SPECIFICALLY accurate.

Furthermore, even with careful weighing and measuring of food,
carefully reading all labels, along with the careful daily recording of our food,
all calorie counting is STILL only an ESTIMATE.

 We do the best we can.
But labels can have a 20% (or more) error,
the sugar count of fruits etc. can vary from season to season,
and there are often individual differences in the way we measure,
and the way the food company measures.

For example, I measure 1/4 cup of oatmeal as a level 1/4 cup,
but when that is compared to the gram weight on the label,
I see that the listed gram weight is the same to an amount that is below the rim of 1/4 cup.

Therefore, we do the best we can to measure and record the calories in what we eat,
but we must be aware that this is NOT an exact science, 
and most of our errors tend to be underestimates.

Regarding graphing data.
I have a great deal of personal data about my own calorie intake,
and my body weights etc.

I enjoy making graphs of that various data,
and am always looking for new ways to look at the data,
hoping that this will help me to spot something new.

 But the key words here are "I enjoy".
I find it an enjoyable pastime, but it isn't necessary,
and it really isn't all that helpful except to keep me focused on the issue.

Although I am responsible for my Behavior with food,
I am not responsible...and have no control...over the Results that my body gives me,
including the timing of the weights I see on the Scale.