It's definitely about finding your personal balance of effort versus capacity to recover, although do make sure to read up on conventional wisdom and use that t

It's definitely about finding your personal balance of effort versus capacity to recover, although do make sure to read up on conventional wisdom and use that to guide you first. It takes a while to know what you're actually looking for. To add an anecdote, my balance changes depending on my focus at the time. If I'm on a strength training arc, it's 3 days a week at 1-2hrs a session. If I've shifted focus to functional fitness I can train 3-4 times a week at ~40minutes a session, as it just doesn't take as long to do the work, and doesn't take as long to recover from that work. Food and sleep are usually the limiting factor, I just can't recover fast enough and that is what over training really is, it's training over your capacity to recover.