Depression related to career change.

I dropped out of college in 2016 while pursuing B Tech. from a private college. Since last 5 to 6 years I had been switching jobs fro call center to now being a Technical Support Representative for Concentrix. I am able to improve my situation financially. Main reason for me leaving college was that I was wasting my time there since all they focussed was on theory and I wanted practical knowledge. Last 2 months I had taken 2 months off and was working on some IOT projects but I think I am not good at that too. For last 5 to 6 years I had convinced myself that I was passionate about coding and IOT stuff but now I think I was never good enough. This thought had been eating me up and now I hate my present job as a Tech. Support Representative. I don't know where my life is leading too but I am not under control of my senses. I am going towards destruction and I will destroy myself as I am confused. Nothing is clear. Please help!!