Which is easy for me to say because I have my legend card back from about a decade ago and they can’t take it away from me 
For the record I got it a few times on handlock; twice pre-nerf and once post-nerf and I was playing about 16 hours per day and had a few hundred bucks in the game.
Anyway for one thing you’re all skinnerboxed so win or lose you’re stuck here, just like the old folks at the slot machines.
For another there is a massive amount of luck and chance involved in mulligans, draw order, matchups esp playing my deck of choice which is a modified jackpot rogue.
It’s not about winning or losing; it’s about a series of moments. Like having 1hp left against a supercheese frost dk facedeck and managing a comeback with scabbs or reconning an underking. Or snaking the “kill enemy hero lolol” card from an ultracheese priest. Or the “all minions cost armor” minion from the megacheese slow druid. Sorry about your cheese bro!
These moments are what you should focus on.