Study Tips?

I am studying for a huge, huge licensing exam. 7 weeks in. 5 to go. Late diagnosed ADHD. Need to be studying around 8 hours a day, at LEAST. Having trouble staying off my phone. If I’m off my phone, then getting sidetracked on my MacBook (texting, shopping, emails, anything really). I take my ADHD medication but still having issues. ANY suggestions on things to try would be appreciated greatly.