I've been training bench 3x per week for a few weeks and made solid gains. Today was the first day of a new weight, and I missed the last rep of 3x3, then tried for another set and failed on the 3rd rep again.

Should I set myself back a day til I can get 3x3 or count this a 1/3 of the weeks progression and do only 2 more sessions before upping

Just wanna be 100% sure, thanks.