Not sure what's causing brain fog, anxiety, hormonal imbalance?

Hello, I'm Cat, 19 years old. I may be posting in the wrong section but I thought I'd give it a shot. I am at a great weight for my height (154 lb, 5'9") , over all healthy and happy college student currently getting my nursing degree.

In October of 2019, I was standing in my kitchen and suddenly needed to sit down; not like dizziness but I felt very out of it. I figured I had too much coffee and went to sleep. However, I woke up the next morning and still felt that way. The best way to describe it is feeling 'high', everything feels very smooth, dull. Due to the fact that it mimics the effect of being intoxicated, I didn't drive, leave my dorm and ended up having to see a therapist because it was brought with a lot of depression and anxiety. I ended not driving for about 4 months, February 2020.

During that period I was seeing every doctor I could think of and getting every test they recommended from a full physical, blood tests, several thyroid tests as I have Hashimoto's, EKG, lots of therapy and everything was coming back normal. I eventually met with a neurologist who dismissed this as a neurological issue but did mention my Kyleena hormonal IUD I got back in June of 2019. It made sense in my head as my period did normalize in October when this 'brain fog' started and that was the only new thing I had added to my life.

Flash forward to November 4, 2020, I finally got my IUD removed after finding an article on Buzzworthy titled "My Hormonal IUD Ruined A Year Of My Life" . It was the only thing that explained my symptoms to a T, the only difference was a different brand of IUD and I have not experienced any form of disassociation/derealization. I wish I could say things got better after this but they actually got much worse. My symptoms intensified, feeling 'high' seemed to get worse, my anxiety has gotten to the point where all that helps is a .5 mg of Lorazapam and sleeping. I had to quit my job and move back home with my mom because living alone and not being able to leave my house was both impossible and unnecessary when it came to my anxiety.

I understand that this may be a hormonal imbalance and I have been taking the appropriate measures to try to get them back on track by taking my Levothyroxine everyday, for my thyroid, which I always have, Zoloft and Lorazapam to help cope with my current situation, a low dose birth control pill, Magnesium, and Vitamin D3. I have also been eating a low-carb diet and trying to get on an appropriate sleep schedule. Although I feel very out of it all the time, cognitively I feel the same. Nothing has changed in my mobility, my memory is fine; I was able to complete 2 semesters in college with an A,B average and i have not displayed or felt any form of psychosis.

Anyway, is there anyone else who has had an experience similar to this and has gotten through it? Also, is there any form of treatment I could be doing to help rebalance my hormones faster? I know naturally is the way to go but with the amount of anxiety and depression this has brought, it feels impossible to wait 3-4 months to get back to normal, at 19 almost 20, I see much more of myself than living in my bed and dreading the next day ahead. I have considered going on a higher dose birth control that I have used before that did not cause any side effects but is that a good idea?

I appreciate whoever takes the time to read this, I know it's long and confusing. Additionally, if you do share the same story I feel for you and know that everyday is an uphill battle but you're not alone!
Thanks!