You are doing great and frankly already accomplished more than many other people. You work and go to school and it’s more than many other people do, the ones without attention deficit and without any valid excuse. Congratulations on doing well
Saying that there is zero shame in seeking professional help. The way you could look into it as if your stomach hurt and you went to see a specialist it wouldn’t be shameful. Same here. It’s not shameful.
I understand being very busy. I can relate. But that’s maybe another valid reason to seek professional help: tackling busy schedule and attention deficit. I’d probably try to get a proper diagnosis of adult ADD (if you get diagnosed) and go from there.
Good luck and hugs