The best advice I'd give you is listen to the people that have been there a long while and done it so too speak !
You can dismiss 98.5% of the shite that all the key board warriors post on forums because they never actually leave their living room to shoot they say they can thread a cock ring on a Ladybird at a 1000 yards but in reality they struggle to drop a hot water bottle in a 50 gallon drum from 2 yards !
Some top lads in NEFTA & MEFTA for winter league certainly some of the very best and as Dave lad said start in the grading system you'll enjoy it more and it's realistic of your ability.
But remember ......................... There's always Scrabble to fall back on !
Right I'm off to Castle to poke Mr Daniels !