You win some, you lose some. You may hate losing now but when you get over it the battles can be made quite fun. You don't have to play your opponent face to face anyway, so just go forward and lose your first 100 battles fast and with that experience challenge those that have only lost 10. I applaud the Pokemon Go -streamers I've seen for having really great attitude for pvp and enjoying the game no matter win or lose (most of the time). Besides, you can collect quite a decent amount of dust playing gbl that's enough to counter the cost of building a decent cheapo-team. You can also use the practicing as an excuse to hang out with other players, both online and irl.