Over the counter medicines to help my ADHD?

I don’t have insurance so I can no longer go to the doctor nor can I afford how much my medication would cost.

I got diagnosed at age five and was on medicine until 8th grade when I decided to ween myself off of medication, I felt like I could train myself to pay attention, which worked great at first! Then after two years or so it started getting really really bad again, no matter how hard I try I just can’t focus, it’s even gotten so bad that I’ve started staying up for days at a time again (something I haven’t done since I was a little kid.) thankfully I’ve got some sleeping medicine that helps with that, that I found at DG but it doesn’t help with me focusing. My mind is going 282838 miles a minute, I’m very anxious all the time and can never stay still. I hate it because I thought I was doing so good with it. I really was but now it’s like it’s worse than ever.

I forgot to add this until it was commented but sadly CBD oil is illegal in my state.🙃