so i made the mistake of enrolling in online school before getting my adhd diagnosis im making it through but barely  i have to make my own schedule so i recommend you try to do the same even if you have to live by your alarm clock but you can be a little more flexible with it in a way   in person i remember having a 2 hour gap between classes and id often be late to that class at home i try to wake up at 8 take meds at 9 and sit down boot up my computer and around 930 i log into classes and work until 430 i get if you cant do 7 hours a day and i often do get distracted doing so hence the living by an alarm clock ive got alarms set for 8 9 930 1130 break 12 back to work 2 break 230 back to work 430 end of day  it get annoying but the alternative is trying to crunch everything out at end of term so im used to the alarm sounds xd