Don't let people convince you that you are not good enough. Don't let fake friends bring you down. Don't let the bullshit of today make you think that your life sucks. Fake people will always be around, but don't let that make you feel like you should give up. Don't ever give up.
Heaven has got a plan for you.
Happiness will find its way and the bullshit and sadness will go away. Maybe not today. Maybe not tomorrow. But one day it will be gone.