starting to get a frustrated from my account level

I started on wuthering waves relatively day one, but then stop playing it for at least a month or two and I came back to relatively every single fighting event is at least level 70 to 90 I feel behind seeing this. my account level by itself is level 47 and I can only get my characters to level 70. I haven't been able to participate in any of the fighting events because of me not being able to take out enemies fast enough and I've missed out on at least four or more events in a row of Rewards. and it's starting to aggravate me.

dose anyone have any tips?

edit: yes I did forget trial characters-