I just got off of medication (lamictal) under a doctor's permission, and I'm struggling.  I'm tentative to try another medication because I've tried pretty much everything out there and each one  has caused EVERY side effect listed, and the constant anxiety the side effects gave me negated the positive effects of the medication. My body is incredibly sensitive and I'm starting to think I just can't be on meds.  
I've been med free before and I was actually doing just fine.  Did a 2-month taper off of latuda stayed off for a year and I had three jobs, stable relationship, everything seemed great! Then the pandemic hit and obviously that spiked my intense moods, but honestly I had this really crazy roommate causing problems for me and I feel he gaslit me into going back on my medication (he was schizophrenic and unstable and forgot to/didn't take his meds all the time and I feel like he projected that on to me.) I don't really know if I needed it, I think HE was the one making me feel crazy...

So I got back on latuda then switched to lamictal, and lamictal work great for about a year until it started to create constant rash like reaction (along with insomnia, constipation and other unfavorable side effects) so I had to do a swift two-week taper to get off. The first time I got after latuda, a couple months later I seemed to stabilize. But now it's been a couple months (I ended the taper mid-February) and I almost feel like it's getting worse, as in worse than before I was medicated at all.  
I don't want to go back on meds. I don't think that I physically can. The only other medication I can try has a possibility of weight gain, and I am also recovering from an eating disorder so I can't have that.  Has anyone else tapered off of lamictal, if so is 2 weeks too quick? If so... what do I do now? My psychiatrist actually told me I could quit a cold turkey but I didn't think that sounded right...
Is there anyone else out there who can't be medicated for physical reasons and if so how do you deal?  Is my brain is broken now from being on meds and/or tapering off too quickly? Will I ever feel normal again, or at least close to how I felt before medication? 
I'm also mirtazapine now from the insomnia caused by the lamictal, and I'm having trouble getting off that.. does anyone has advice for that too because my doctor also told me I could quit cold turkey but I read somewhere it should be a 10-month taper?

I feel like I can't trust my psychiatrist or any doctors anymore and I don't know what to do, help 🥺

** Definitely not advocating going off medication, I just don't know what is the right move