Two things.
#1. I dont think we have anyone here that plays this. Overall there are very few PC gamers here at all, it seems. It is rather irritating.
#2. The ships.... they're just different stats, that's all. It doesnt matter if you're autistic or not. It's about your playstyle. Are you the aggressive sort? Go with something that's known to be good at direct, concentrated attacks and head-on combat. Are you the sort to try to defend other players, or defend important locations? Go with something designed to control an area and hold off threats.
That's typically how it goes with this sort of game. World of Tanks is the one I'm familiar with, and it's no different there. Each type of tank has some role it's good at, and Warships is no different.
Choosing the role that you want to do, and then the ship/tank/whatever that's suited to it, is the key to getting somewhere in these games.
Good luck! They're not easy games to learn, but they're quite rewarding. Usually.