Depression is no joke. Your priority right now is getting treated for depression. Once you have that under control, then talk to your doctor/therapist about possibly of a different school. I usually don’t recommend transferring, unless it’s for financial reasons, or need to move back home for health reasons. If neither apply, you could end up in a worse situation than Berkeley.
It sounds like you have what you need. The school already gave you a health accommodation, and you’re in a city with world class medical facilities. Not all schools are that generous. I’d say, just focus on easing back into Berkeley if you can.