30 to a 33?

I’ve only taken the ACT one time w/o studying and got a 30 composite.
27 English
31 Math
32 Reading
29 Science

I’m trying to get at least a 33 Composite on the June test but I’m not so sure. I can score 34-35 on math no problem, but E/R is pretty inconsistent, with scores ranging from 27-32 (both).

I’ve done 2-4 practice sections a day for the past week and I can finish in time, but I still feel really dodgy.