Where did you learn trading? (F&O advice)

I’d like to make trading my main income source and idk where to get started. My degree isn’t gonna help me long term and I’m looking to start learning about f&o. I’ve got basic knowledge in stock market, just the fundamental research part. Technical, pretty basic! So I’ve got a few questions; 1. Are the offline/online classes worth it? 2. Where did you learn initially and did it help? 3. My math isn’t good so do you think I can learn? 4. How much time did it take for you to get good at it? PS: I’d like to invest full time into this and wanted to know if it’s worth it.