Help! I Need To Switch From Wellbutrin and The Brain Fog

I have been on Wellbutrin for 3+ years, currently on 300mg. I had horrible postpartum, and Wellbutrin, along with Stratterra (currently Adderall), were the first medications I have ever taken. I love what Wellbutrin has done for my emotions, and hate that I may need to leave it.

But the brain fog and lack of memory recall are kicking my butt. Originally, I told myself to just deal with it and that I would adapt to it over time, but I am now back in school, and I feel as if it is worse.

I'm guessing I need to make a change, but I'm nervous to try something new and revert to the place I was in before I started Wellbutrin (I know that is unlikely), but I can't help my anxiety over it. Does anyone have recs for something similar to Wellbutrin? I want to do some research before I ask my doctor to switch medications. I know some antidepressants can cause weight gain and have extreme side effects, so I am reluctant to take just any kind.