Hard time on college

So, I'' in med school, 2nd year..

And things are going terrible,I'm constantly failing my exams,I feel tierd and depressed,cant concentrate and dont have any good strategy..

We had physic and biochemestry so far,and my resaults are shit..

I feel exhausted and I have no time for study nor for haning out..

I don't know how to memorise better and learn smthg,since I have forgotten many things we had in high school and lots of stuff in chemestry and physic have smthg in common with stuff we leanred in college, (only heavier..)

Please give me some good advice,I'm afraid of failing,and my family is making me so tense and constantly telling me that I'll be hudge dissapointmetn if I fail..

I don't know what to do..I feel like I have to learn the basic all over again and don't know how to be able to finish all of this in time. 😭😭😭😭