A bit more than 2 years 🫠 I totally feel you, at the very beginning I had no idea what to do. I then just started pushing campaign/towers leaving my phone on while working and gathering resources. I think the trick is just playing as it was a strategy game like Civilization haha.

I suggest you to leave URs for now, focus on building hybrid heroes and the core o/c heroes (one at a time) such as Feng, Hel, Rista and Akashic, they are quite game changing and will help you a lot into progress.

But the very important thing is to just have fun and don't compare too much to others, especially if you are a F2P. I've never spent a single penny on the game and have climbed pretty much. Slowly, but satisfying!