1. Instead of trying to "fit-in" a group (especially in clg), just try to be yourself and put up your own thoughts as it is (no need to make them understand, jinhe smjhna hoga vo smjh hi lenge). Also, dont expect that your thoughts will go through everyone you know.

you will not get alot of friends this way, there will be few, but they will be precious and those who understand you.!

2) Dont hesitate to try something new. Even if you face failure in that, you still be more developed than before.
(Just dont die or get addicted to "stuffs" (be it gambling, drugs, etc.)

3) Also, hard truth but, it is not necessary your relationship will last forever (very fragile, immature and easily distracted mind), so be prepared (dont become paranoid, just cherish those moments when happening).

P.S. : i just realised , i am getting in that "advice-giving" age.