Leaning forward in your chair all the time will make your cock smaller. Also makes your balls sweat more.

Keeping your room clean can reduce the amount of dust that builds up inside your case.

You know that thing you keep that curtain over?
That is a windows. It allows fresh air to come in.
The light that comes with it wont kill you.

Try new things. You see the bottles in my pic? They are good. And moderately cheap.
Grab 2 if you want to get smashed.

Greasy food is ok to eat. Don't let people tell you that this food and that food it bad and you should stay away. You tell them the human body develops immunities by fighting illness and poor health. By not being a lazy fuck and going for a walk every day for 25-30min you can eat that food no problem.

Cut down on your portion sizes. I know you hear people say "Stop stuffing your fucking face and you will loose weight". They are half right.
You can eat that whole medium pizza. Just not all at once. People are in the pattern where it is 3 meals a day. Make it 6 meals. Cut your meals in half. Eat every 2-3 hours.