Most people are only going to chase their dream up to the point where they are happy to sacrifice to attain it.
For most, if they have to sacrifice more than they are happy to, then they give up on their goal.
If it isn’t easy enough, most folks aren’t willing to put in more sacrifice to make it happen.
For example, you may want to lose 30 pounds but only if you don’t have to get more sleep, go to bed earlier, cut out most alcohol, evening meals/snacks, tasty foods and daily treats.
If that’s what you’ll have to do, many just go through the motions, don’t really track progress, make body type excuses and remain as heavy as they are.
They may try again later in the hopes they have developed better discipline or science has changed and they won’t have to make any of the above sacrifices to reach their goal.
Or they just go to the gym or to a personal trainer in hope that some activity 2-3x per week will make up for the excesses they won’t give up elsewhere.
This can go on for 3 years or even 20 years. It will continue until the desired outcomee or goal becomes more important than the sacrifices and true, consistent change required to make the goal or outcome become a reality.
So save yourself 20 years of not trying enough / trying and make the sacrifices required or realise your goal is a wish not must, and give up on it.