After fighting with my parents i feel like throwing myself in front of a bus or jumping off a bridge and falling to my death

Nah your parents did their best.. it's your turn bro don't make it hard for yourself by worrying.. just start somewhere,change your attitude and do something(it could be anything as long as you're making people's lives easier) eventually you'll see results and you'll find out different ways to improve your life

Don't do it. Grab hold of my hand. I will pull you back over. The ship will strike an iceberg in fifteen minutes and there aren't enough lifeboats.