1 year ago, I had a stroke and as a result, I’ve not driven or drunk alcohol since. It’s hard to adjust but you will do it and you’ll come out of it stronger and more focused.
Talk to your doctor about changing your drugs. It’s in everyone’s interest that you stay active and healthy There is a new generation of medications such as Lamictal which may prove effective for you and have no side effects.
If you enjoyed biking in the past then try everything you can to get back into it. Life gets so much better when you have something to obsess and complain about. Exercise is so important to stay sane. I’m not sure why you say no more biking. If the risk is riding on the road then find a way to avoid the roads.
Good luck
Schweiz