How can overcome my anxiety, depression, and in general myself?

Go see a therapist and commit to it on a regular basis, as talk therapy has been the top treatment for all disorders in which you are describing. I have bipolar disorder and you have some of my symptoms. I am on lithium and klonopin . Its helping alot. But it takes time and patience. Marijuana might help, but it is illegal and probably not the best longterm treatment. Look for a county health center in your area and call in for as essment. Be perserverant in your journey, you will get thru this and stay committed to health!!! Good Luck!