I believe that You just demonstrated the most valuable lesson any Skipper can learn.............limitations. It's even more courageous that You identified yourself as the limiting factor................Bravo!
It takes a real man to make that call vs a reckless person who carries on because of some macho attitude or testosterone.
You will write a much better ending the next time out vs possibly having a bad experience, hurting yourself, someone else or your yacht if you continued.
Challenges, hurdles & limitations are faced on many voyages, Recognizing which ones can be overcome, bypassed, ignored or need careful attention separate the men/women from the boys/girls.