Tried breaking through

This was my 2nd time using dmt. The goal was to break through. I estimate i took abt 7 hits of the cart. A few of them i didnt even exhale any smoke somehow. Am I doing this wrong? Also when I felt i was blasting off and like my body was starting to go limp and i heard a high pitched sound I got too scared to keep going because the dmt started telling me everything I was doing wrong in my life and I decided I wasn't ready yet. Felt similar to my high dose mushrooms trip near the peak. Would it be useful to have a friend with me and use syrian rue seeds next time I try to break through?