Act 5 100% Struggles
So I'm working on 100% Act 5 and have completed the first 3 quests in chapter 4, 4 quests in chapter 2, and chapter 1 is already 100%. But now it feels like I'm stuck and just have to wait forever and save up a lot of potions and units ( I am not a very skilled player). The main champs i use are 4/55 sparky and domino, along with 6 star dormammu and 5/50 gwenpool/Luke cage/CM movie. Am I struggling more than I should be or is this normal? It also feels like I'm not really getting better at the game so I'm not entirely sure what to do. I've watched tons of videos on Act 5 already, but I simply don't have that much skill to do it as easily as most do. Any tips would help, or maybe I just need to be patient and focus on something else?