my exam in 18 days, should i go or delay? please help

my nbme scores

nbme 29 - 68%
nbme 28 - 65%
nbme 30 - 68.5%
nbme 31 - 67%
free 2021 - 68.9%
nbme 33 - 68%
free 2022 - 66%
nbme 32 - 66% (today)

what should i do???