You’ve taken your time and learnt a skill. Great!
But the sad reality of the situation is that unless you keep practicing, you’re going to get rusty. Just like a car shouldn’t go without use for long periods of time, so should your skills. Depending on the thing you’re doing this can take anywhere from a couple of weeks to over a year. Sure, you won’t ever completely forget your skill (hard work never dies) but you’ll notice it isn’t working out as smoothly as it used to once you pick it up again.
If you’re busy collecting skill-points like a squirrel is collecting nuts then it’s probably going to get pretty hard to get just a tiny bit of practice in for each thing you’re learning. Don’t worry though, it’s not the end of the world. Just make sure do a little warming up before you need a skill again. No use going to apply for a job, and during the interview having to say “yeah hang on, I can normally do this faster but just give me half an hour for now”.
(What the fuck is this post.)