I can completely relate to what you're saying. You can read my signature below.
Busy yourself in some activities, set goals, whatever they are. Don't overthink that you're commiting sins or you're doing good - don't ignore it, try your best, but don't overthink it. Find a purpose in life, and things will settle down. Breathe a little, go out on small walks, sit down and sip coffee, lay on the bed and do nothing. Don't stress it. Allah is all forgiving and loving, don't underestimate His mercy.