Got overwhelmed coming back from ZZZ 1 year later.... Any tips as from where to start?

It's like a grenade exploding in front of my face and taking full load of the contents. I took a break like a year after I got Yi Xuan because it became too much time consuming from me doing all the dailies events and limited events and right now I don't even know where to start. Any tips? Because this is the only gacha game I played I don't know how and what to do it feels like getting a comatose in the 90s and waking up during After Kirk Era. Please, any tips will do just so I can start from something. Thank you very much.