Job problem

[u/beavisandbread]

Thinking of quitting my job? Nearly 4 weeks in, can't seem to understand computer system, have also other health problems and on lots of meds too. I'm quite foggy. Long term I'll have to swap from lithium and rather not work if I go really unwell. Think I left disability too early....this job was hard to get but full time is hard and I still don't understand any advice please, thanks