What I'm doing might not work for everyone, might not be what you need to hear. I'm 68 now, so picture quite a long time period and a progression of recognizing that sometimes people need help.
I had a sad childhood and family history. I got help for some specific issues, and met 4 different therapists over the years. I had a complete hysterectomy which caused a lot of my emotional problems to get pretty intense and i tried some anti-depressants for a couple of years. I didn't think they helped me, and I decided to just live with how I felt.
One of the big things I live with is the loss by accidents of my 3 brothers. Two of those losses were the root of the depression I have. I read a lot about grief management over the years. The last thing I read was in a women's magazine. A woman who had lost her child said, "Some things are unacceptable." That was what I needed to hear. I will never accept the losses my family suffered. I won't ever find a reason the different accidents happened. But I can live with them now.
As for doing what you wish, whether it brings you wealth or fame, you should answer only to yourself. I was lucky to be married to a man who nurtured and encouraged my dreams. Looking back, I had dreams, but I didn't have plans. As our kids grew, I was able to explore my dreams. Nothing led to a career. I'm not famous for anything I do. But I learned where my talents and abilities lay, and I was willing to try anything. I couldn't have lived as I have without my husband being right there cheering me on. Not all of us are that lucky.
Anyway, thanks to this series of experiences I call my life, I think one of the most important things we can do for ourselves is to do what will make us happy. Try to spend time that care about your happiness. Avoid people who are critical.
Take care of yourself. You have a reason to be here. Until the day you die, you might not know that reason, but you are fulfilling your purpose. 
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