Dude get over it.
There’s no way to buff WM to the point where she’s meta in the mid-tiers but not unstoppable and oppressive at the high tiers.
If you want to climb. You should diversify your play time with different heros. WM can be powerful on some maps and situations, but especially in gold, you aren’t going to be consistent enough to get enough value out of her.
If you don’t care about climbing, then keep playing WM and enjoy the gameplay. But know you’re going to have lots of games getting rolled, and lots of losses. This is the trade off your making to play WM.