Stuck

I started Semaglutide in May at 170 lbs. I had to increase to 20 units faster than normal because I stopped losing weight at the 10/15 unit level. So, I spoke to a representative and got the okay to move up to 20 units earlier. I've been on 20 units now since July, so about 4 months, and I'm not losing weight anymore. I've been fluctuating between 135-137 lbs. I've tried rotating my injection site from my legs to my stomach to see if that would help. I've been going on daily walks and playing pickleball for 2 hours a few times a week to increase my movement, but nothing seems to be working. I have an appointment today to talk to a provider about my refill. I'm wondering if I can go up in units. Would that even help? Has anyone else had this happen? If so, what worked for you? Looking for some insight or advice before my appointment this afternoon.

Also for reference im only 5'2 so im trying to get into the 120's which is still considered high end for my height.