Thank you for sharing your story, and yes, you have our support.
You mentioned that you THINK you're suffering from ADHD, have you been diagnosed? Because to my knowledge, ADHD can't be self-diagnosed, maybe you just have some habits that look similar. The treatment will be completely different. Ever if you're diagnosed ADHD, there're also several types of treatment, and you will need to find out together with your psychologist specialized at ADHD (not all psychologist can handle this), which one is the best matching treatment (you will attend the decision making, not just your psychologist).
So my suggestion is that, if you're not diagnosed, ask your GP to refer you a specialist who's eligible to do the ADHD assessment. Or, you can google places that can do ADHD assessment around your area and then return to your GP for referral. It may take months to wait but you can at least start this process.
Hope everything will be better and better.