Improve quant

Guys i took my GRE and scored 163V and 161Q. I am not too worried about my Verbal score but my quant score as I need around 167 minimum. My self assessment is i failed only one question in section 1 (geometry) but section 2 i spent too much time on some questions and had to guess on others. I think I sometimes realize a method is wrong after i spent time on it, and my arithmetic mental math is not good enough. Anybody who can help on what i can do to improve


Refer to the image

Your diagnostic test report is cut off - can you share the full one?

To me it sounds like you need practice with harder questions.

I totally agree with your suggestion about harder questions. May you suggest sources that might help?

Further find attached the complementary screenshot of the diagnostic report above.