So far, I'm only going bouldering with at least one friend along. (The gym requires spotters, though it doesn't actually enforce this.) So there's some pause limits in that if I fail a course, well, it's time to go play spotter for my friend anyway, and that gives me breathers. But I'm really hoping I'll develop more endurance soon; only being able to get one course properly per visit is so frustrating, even knowing that the traversing and flailing afterwards is helping me along.

Is there any accepted "reasonable" amount of time I should be taking between sessions? I don't really have the schedule freedom to do more than three times a week, and it's more likely to come out to once a week, but I don't know if I should be taking days off between going, like with weightlifting, or trying to do it as frequently as possible, like with stretching.