NPC009 said:
I think one of the first things you need to ask yourself if why you don't cook.
Oh, and I just wanted to answer this real quick.
I still live with family and they don't usually let me cook.
I only got my own car recently so until now I haven't been able to go out and buy my own ingredients and just ended up eating whatever my family bought or what I could get at work.
And when I did manage to get my own groceries my family put up this huge stink about how they didn't like how the stuff I cooked smelled and looked and wouldn't let me use things I needed to make and store my food.
It sucked.
Well this just got exponentially harder.....
Your living situation makes most of the dietary advice I was going to give problematic to say the least, but there are still some things you can do.
I'm pretty sure that your family wouldn't object to you keeping some basic healthier options that don't require cooking available. Make sure that there are some raw vegetables like carrot or celery sticks around, same for fresh fruits like bananas, oranges, apples and grapes. Having the healthier choices like fruits & vegetables *available* when you feel like a snack and at dessert time at least gives you the opportunity to make the better choice.
As for exercise, Richard Simmons actually hit the nub of the problem decades ago when he pointed out that what everyone needs to do is find a form of exercise that they *enjoy*. When people have a form of exercise that they enjoy, they make excuses to go and *do* it, rather than excuses to *avoid* it.
Mess around with some different things, try a few sports see if there are martial arts classes easily available in your area.
If you choose some form of 'regimented' exercise like calisthenics or weight lifting use a spiral notebook to keep track of your progress-- when you get discouraged (almost everyone does) you can look back at how you've progressed over time and see how well you are actually doing. With whatever type of exercise you choose remember to start small and slow and build over time (injuring yourself or burning out all of your enthusiasm immediately will torpedo your plans quicker than anything).
You didn't mention specifically if soda is one of the things you have a problem with in your diet, but everyone is right that it is terrible for you. If you do indulge in soda and are having problems quitting let me know and I'll tell you the method that worked for me.
Many people have also mentioned that having a small indulgence every once in a while is fine and they are very correct. What you are trying to do is change your overall trends and make better choices.
If you snack while watching movies/tv opt for healthier choices, carrot sticks, celery, cauliflower florets or fresh fruit.
Avoid boredom. People in industrialized nations snack when we are bored.
And always remember, we are all here to back you up & offer our internet-type support!
VIVA LA SHEEP!!
{EDIT} I totally forgot to mention-- if you use ketchup at all, try substituting tomato sauce instead. It has a tangier taste without all the added sugar.