Good day everybody , hope you are all finding a way to survive .

I need some advise please .  I have recently been diagnosed with ADHD and even more recently I realized to my horror that I have Dyscalculia. Trying to go back to school and doing mathematics . Something I have dreaded for long . I have always thought that I was just stupid and that is why I dropped mathematics as a subject back yonder but now realizing that I have an issue.  I cant see numbers in my head or when I do its jumbled and mixed up . I make the silliest mistakes and that is all part of Dyscalculia according to the websites  . I wish I knew this back in the day because then I would have found a way to work around it or at the very least not crucify myself for being stupid. 

So in short I want find out if there is anybody here who has the same issue and is there a way to "train" my brain. I have had this issue for so long that I am literally afraid of doing maths ( having a maths teacher berating you for being stupid did not help my self-esteem) . I don't know if my brain has sequentially started to shut down because I don't use that function of my brain and if I could just persist by doing exercises will it get better? 

I know the issue probably wont go away but can I, at my age get better at it?  At the moment its so frustrating and if there is no hope then why bother ? 

Do I need to accept that I wont be able to study something that has to do with mathematics , I know I wont be a mathematics professor but could I study something easier ( not talking about degrees that has no maths) .  Sorry guys for this long message but any advice would be appreciated .  I don't want to give up on school but I need to be realistic and your stories can tell me if I should proceed or not .