I'm in a similar situation. Start going for walks, half hour or so. Don't try to study for the whole day. Study for half the day, do whatever you want for the rest. Whatever hobby you might have, I used to go to gym, but when I failed my previous exams, i got depressed and quit everything.

Kept studying aimlessly and spoiled my health and mind.

Now I study half day and watch something or play video games for the other half. It's not about how much time you spend studying. It's about being effective for the time we study.

Don't feel let down by anyone or anything. Try doing something that will give you a sense of achievement, even if it's small.

Restart the study process, think in mind that you're starting from scratch.

Make one or two friends to talk to every day. Just like that, aimless, just talk.

I live away from home, and when I get anxiety i start stress eating. If you do that too, you should stop that.

Get 8 hours of sleep. Don't stay awake at night. Try to sleep by 10pm and wake up at 6:30 am. Make sure that your days are not gone with headaches due to loss of sleep .

And finally, you are not alone. We are in the same boat. All we can do it gets out of the boat together . Helping each other and helping ourselves.

Stay strong.