u/After-Possibility430

I, like I said, just started, and I’m wondering how to choose a main. Or I guess main 5? I’ve never played before and I’m really confused. I got the game for the mechanics, graphics, and insane roster number. How do I choose 5 out of these 5 bajillion options I have and how do I choose a main 1 to focus on. Tier lists are always an option but I want to choose a character who I can play on a casual level and have fun with. Are there any characters that are impossible to have fun with on the casual level that I should just steer clear of?

I have 278 hours in the game and my highest rank is iron 3. I don’t know how to get better. I have tried everything. I’m just not good