Should I lock in the date?

Hi everyone! I'm new to reddit and this is my first ever post so please be nice lmao. I am a non us img and working full time. I started prep last year and I have been diligently at it since, I was supposed to test in march but i was far from ready so i extended my date for examination to june 30th. Now I havent completed all of Uworld, only 72% and this is my "first pass" I have gotten a score of 60% overall on uworld.

Fast forward to now I started doing some NBMEs to push myself and so far what I have scored is:

NBME 25 - 59% 19/05/25

NBME 31 - 65% 24/05/25

NBME 28 - 69% 31/05/25

My dilemma is, I havent officially finished the syllabus for things like psych, ethics, derm, biostats but I was doing questions in random mode on Uworld for those and I feel like i can hold my own for the most part i guess. I want to test on 30th of june (this month) but i dont know if im ready. my plan was to do another NBME, possibly NBME 30 to see if my score is in the 70s then ill book the date. Please let me know what you guys think! I genuinely need advice on whether i should book the date or not. Thanks once again everyone!