
I'm in year 13 as well and stressing about a-levels they're so close and I feel underprepared and constantly questioning my own ability so don't worry you're not the only one feeling stressed.
If you feel tired when you get home, do you have free periods during college in which you could get some work done? If you're struggling with focus you could set a timer (eg Forest, Pomodoro) which could motivate you to remain focused during study time. Making a revision timetable could also help provide structure to ensure you're having a good revision/rest balance. If you don't think flashcards are useful you could try other active recall techniques like mindmaps, blurting etc.
Of course these are just suggestions as these techniques work for me absolutely no pressure to do these things if you don't want to

Feel free to ask any other questions and I'll try to answer the best I can
