I don't claim to have the answers; I do claim to have empathy. What you're describing isn't far off what I lived through around your age, though you sound like

I don't claim to have the answers; I do claim to have empathy. What you're describing isn't far off what I lived through around your age, though you sound like you're managing better academically with it than I did. Well done for that. For me, exercise helps but isn't a panacaea. Proper sleep helps but too much sleep can be a symptom of depression I understand. I've had a tendency to almost obsessively research things sometiems in that position, close myself off in that pursuit then look back later and realise it's been an excuse to shut off. The people around you, odds on, care more about you and your health and happiness than you think. More of them have suffered or will suffer something like you are now than you might expect. What little wisdom I do have in this area says to try and stay in touch with some degree of 'normal' life in the outside world. Forcing yourself into too much risks burnout which is no more helpful, but managing at least some leiure (i.e. outside classes) outside world interaction will, I suspect, help you. Most people are fundamentally nice and helpful IME, frankly, (One little thing, you say you have no connection with your peers any more and seem to feel you've moved on beyond the pursuits that seem to interest them. For most of my life the vast bulk of my friends have been older than me; they're just who I tend to find interesting. Later stages of undergraduate education aren't conducive to significant friendships with older people than yourself though. You may find you benefit from trying to reach out into new social avenues outside education eo engage with peers at a different point in their lives than where you currently are yourself.)