I feel guilty at my anger and sadness.
How long have you been feeling this way?
For years now.
Talk to friends or family members about the sadness you're feeling. These emotions are not a fault so you shouldn't feel such overwhelming guilt over them.
I think therapists are a scam.
Well if you don't trust therapists have you tried talking with family or friends? It isn't good to keep things bottled up inside one day you might explode. That could really hurt your relationships or loved ones if you do.