Ugh, only the beginning is okay, but the mid-game is hell

Seriously, if you don't spend money, it's so stressful.. After just a few matches, enemies over level 100 start appearing.. Our heroes are barely at level 4 or 5, while the opponents are all level 5 or 6 and above.. We can't even compete.. You have to pay to play. Just take the rewards from events or quests and quit. Even the money events only give 1x or 1.5x rewards. I spent a little bit thinking I'd play for a long time.. But I've lost all motivation.. Just get the rewards and quit this gameㅡㅡ It becomes a stressful game..