It's probably recommended that during poor mental health episodes that we need to make time for self-care. Do hobbies you once enjoyed, and distraction your mind from the sufferings. Rediscover what had kept you feel motivated in the past. Was it achieving a specific goal after finishing a course? Was it the college you want to attend based on yoir field of interest? Was it the future job you want to be doing after graduation that kept you moving forward and motivated?
If those goals are too far, make smaller goals. Be motivated to achieve those little goals instead. Take breaks for self-care, as often as you feel its needed for your mental health to become good enough for more studying.
Don't force yourself, but also don't be stuck in the same spot. Continue to move forward, even though if they are baby steps.
