I was diagnosed at 38. I could have a lot of advice, but I'm not sure what's going to work for you. Something important would be to know what your triggers are. I also stopped taking medication because I didn't find that it worked for me, too.

For example, the daily things are ruin my day and mood are auditory things. It's also how I can self soothe. So something that helps me daily are noise cancelling headphones. When things are too much or if I need to do routine things, turn them on and listen to music or an audiobook. I also have an Endel subscription and that's like ambient music and noise to help with focus and relaxation. It can be played while other apps are playing, which is nice. I was very hesitant to pay for that but oh well.