Ah, bless the oldies and respect your elders, for their experience, knowledge, and oodles of free time for aimless, pointless leisure pursuits like WoT and lawn bowls - at least, I hope that respect continues as I enter those blissful, halcyon years. Stressed only by waiting for the next pension cheque, the next English cricket team implosion or an indiscriminate light tank that suicide dashes to the rear ranks highlighting my TD or arty with the inevitable consequences...
Just a few months short of 60 here - enjoy WoT within it's bounds - and I don't worry about WN8 or win rate: at my skill level and my virtual crew skill level, it's all pretty random in random battles - so think of it like that and the fun aspect remains. Enjoy it for what it is - a half-decent, multiplayer, FPS in metal skins and with lovely vegetation scenery...