I'm just like you, I've some period of productive work and then cannot do anything. I'm shy of few courses to get a minor in business administration because I couldn't do the mandatory class presentation. Thankfully I managed to graduate with a very low GPA with help of meds. Most normal people don't understand the challenge you face, but fortunately there are some medicines that work, but it takes a while. It took me 10+ years to figure out what works and what to avoid.

What I'm currently on that helps me are

1. Trintellix

2. Wellbutrin

3. Adzenys XR-ODT (This is ADHD medicine prescribed to kids, it helps me better than Aderral or Ritlin.)

I hope this helps.

[1] https://en.wikipedia.org/wiki/Vortioxetine

[2] https://en.wikipedia.org/wiki/Bupropion

[3] https://adzenysxrodt.com/

Edit: formatting