Day 80 : Feeling a bit lost

I'm feeling that I'm only doing 2/3 of PCP. Diet, fine, and the skipping but my condition really isn't up to most of the workout so that while I thought Day 80 would be a great milestone, what I am realising is that I haven't reached that level that I could have and there isn't much (enough) time to catch up. And my thought of continuing past Day 90 will be relatively short-lived because I'm going to England to celebrate my father's 90 birthday at the beginning of December and that will throw out any remaining discipline. So it it beginning to sound like a New Year Resolution. Hmm.