I'm lucky as I started retraining at Thanksgiving last year and have been able to find enough decent days to get in the rides I've needed. I really helped to have a flexible enough work schedule to be able to sneak in some weekday riding when the weekend weather didn't cooperate.
And I agree about the 6-0. I turned 60 and it the first time I've really thought about hitting an "historic mark"!!
You'll get there. Don't rush the training as quickly and as much as you probably want to. Getting to where you probably want to be will take a little time so patience!!
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Ride your Ride!!