A couple of good friends is better than hundreds of fakes.
We all piss off someone sometimes, it's part of life , those who are petty about it hold grudges for the stupidest reasons.
You only ever realy need you.
Bollocks to what others think of you , what you think of you is more important.
You can be whoever you want to be if you're prepared to go for it and even if you don't get there you can always stand proud and say I gave it my best shot.
I left school with no qualifications but I worked hard and became a very skilled engineer , I earn more than enough and I have travelled far and wide.
I like being me and thats all any of us can strive for, liking ourselves.

PS I have absolutely no reason to dislike you.