Go into your banking/credit card app and enable purchase notifications. Now, every time your card is charged, you get a notification directly on your phone. Do

Go into your banking/credit card app and enable purchase notifications. Now, every time your card is charged, you get a notification directly on your phone. Don't recognize the charge? Deal with it immediately. Get a charge for something you need to cancel? Deal with it immediately. ADHD is not an excuse to hold zero personal responsibility. Find a way to manage your life that works for you. You're not the only person with ADHD... don't let it be a crutch for mismanaging/neglecting your life.