What is wrong with me?

Well after a divorce socializing is hard. I would buy your friend a nice gift and explain your not feeling like yourself and ask her to not give up on you. i would want you to join a church youth group and go and meet young people like yourself. I also would look for counseling because you kinda sound depressed. Please know your desire to educate and get ahead is very good, but you need Jesus at this point, and I hope you pray and ask for forgiveness and guidance. No I do not think your a failure, these feelings you have need to be addressed. I shall pray for you and wish you the best!