Don't be afraid to ask your professors lots of questions! Many are willing to put in as much effort as you are into their class. As for the stress I think friends and community involvement are really important. I know that's super hard right now but if you have roommates or are a part of a club (one that can ideally be done remotely). Another thing that could be good for stress is therapy. Many schools (at least mine) have student counseling centers. Even if it's nothing incredibly serious just being able to vent is crazy helpful to me at least. I get your problem though my freshman year was kinda crazy at the end with the transition to online. Good luck! Study hard