After about 1 month playing!!! So excited!!!

But I'm very frustrated with the drop rate of 2* white evo shard and 2* evo shards in general... Why so difficult? I see a lot of people with 5* Eddies and allies but as much as I play I can't seen to get 2* shards to evolve my team...

I play every day quests, play KOTS hard, Battlefield normal and can't pass Underworld normal stage 3 because all 4* enemies eat my team. Also in the time rift I cannot do stage VII and on stage VI I need to ress 2 or more times because mobs don't receive any damage at all.

Am I missing something? Is there a good way to farm 2* evo shards I don't know?