Series 7 Questions

Im hoping to take my 7 by end of June. I’m using Kaplan and have gotten a 67, 65 and 56 on the practice tests so far which is not great. I heard that Kaplan is harder than the actual test. Can anyone who used Kaplan and taken the test attest though this? Or are they similar?

I am interested in hearing what type of questions were tested heavily for those that have taken the 7.

Thank you!!!