It really used to seem impossible, but after my first win I've been able to win a run on about half the decks (black deck is hardest so far). I usually use cards that focus on smaller hands (like the ripped joker) so I can win on easier hands. This was the silliest one I built so far (2pair based):

Liking overwatch in 2024 is a bit torturous so I respect your honesty, hope we can eventually get Venture some skins :')

In psych we say that you have to just do it consistently and not expect to enjoy it at first. The enjoyment will come back later, focus on motivating yourself