Good luck with your ambitions.
Ask questions think about the answers given and ask if and why they differ from your own answers.
Set short and long terms aims (Small and big wins). For example: Ref 10 games before Christmas. = Small win. Ref the RWC. = BIG win.
Accept that every now and then you'l lhave a poor game. Learn from them as much as the good ones.
Don't believe a player when he says you were the best ref he's ever had (especially props). What he really means is either: 1, his team won. or 2, he got away with murder.
By the same token if a player says you were crap, it could well mean that you were indeed poor today OR that everytrhinf he tried you were wiase to or his team lost.
Take praise and criticism from players and coaches with the same pinch of slt
Listen to your assessors and to other refs.
If you have no game go and watch a ref at your level, watch their positioning learn what works and what does not work. talk to them.
Don't take your positioning from the elite guys. They have ARs and TMOs you do not. You need to be in different poositions to Barnes, Owens etc.
When your fit enough.......................get fitter!
Concerning the dyslexia. Don't worry! when it comes to report writing etc there will be plenty of people in your society who will help you all the way.