SAT or ACT?

Basically I took the august SAT got a 720 math 660 rw and then the tutoring place I am going to made me take a mock ACT just to see if i’m any better at that.

Ended up scoring a 33 and now wondering should I switch to act or just keep sat? I found the act reading easy, just the grammar for english a little confusing as well as some of the math