Hey, @Stephen Archibald! If you can afford the time and energy, I'd suggest making up a weekly or monthly schedule for your art studies and practices, dividing each session by topic, according to what you want to learn or to which skills you'd like to develop at the moment. However, if you work full time, have kids or live under any other condition that limits the time you can dedicate to art, I'd say you can let go of what you already know for a while and prioritize investing in other things that can help you keep learning and growing as an artist. In my experience, once we've learned some solid skills, it's okay to spend some time focusing on other things - it's very unlikely that we'll "unlearn" what we'd already developed. Of course, later on, when we decide to pick up on something we had taken time off from, we'll probably feel kind of rusty and need some time to get reacquainted with the practice, but that doesn't mean we've lost all the previous mileage we'd built. Even if we do need to take a while to remember some concepts or shape up techniques, the "recovery" is much faster than when we're learning everything for the first time. Hope this helps!