I struggle with maths full stop. That little advert with the gremlin is me. I'm alot better these days but it took me 3 attempts to scrape a "C" grade at GCSE level. I then sacked it as a lost cause.
However 6 years later I've realised you can't just get away with that. I spoke to a tutor at my local college who's advice was relate it to work/hobby. So I quite often use examples like: 3 Platoon have x UGL rounds left and 2 Platoon have y how re distribute it so the 3 platoons have the same amount and the OC's group have 10 percent of the final figure. etc etc.
specific fractions example
How do i simplify that then make it into a percentage. Easy example but when its bigger dodgier numbers your fooked without a calculator are you not.
you are obviously a smart bloke so you'll be fine. just keep applying yourself.
do your tables again if you have to. anyone learning a language has to remind themselves of language laws so dont be embarassed. these are the building blocks of the logic of maths and lingo!
remember the reward youself for :
1. small victories
2. the moment when you have passed - because you will!