Depends. What discipline was your undergrad degree? ME? MET? How long have you been out of school? How close were you to passing? The test has changed a lot since I took it, so do they break out the general vs discipline scores?
I would suggest you get some experience. So major factors of failure are low level of experience and non-ABET accredited schools. I would suggest FE prep books by PPI. You may be using the wrong book to prepare. I can certainly be helpful advisor toward your success. Let's discuss.