AP Physics C Barron's vs 5 steps to a 5

Hello, I am a junior taking AP Physics C: Mechanics this year. I took the practice test for physics from the 5 steps to a 5 book an got a low 3. I haven’t started the practice tests from the Barron’s book yet. Are these two books harder than or the same difficulty as the actual test? Does getting a 3 on this mean getting a higher score on the actual exam? Which one is better and which one (if any) will over prepare me? Thank you so much.

actual test is a bit easier than the Barron’s practice test

Thank you!

Ignore this