You’ve been very disciplined, attending classes every week, and with the summer months approaching you want to take a well-deserved break. Danger, Will Robinson, Danger!
Let’s compare this decision with other scenarios.
You’ve been dieting for a year and have dropped 20 pounds, You’ve reached the inevitable plateau where your progress seems to slow down. Why not take a break for three months and just eat whatever you want without thinking about it. ARE YOU NUTS? You will gain back everything you’ve worked so hard to lose, and probably a bonus fiver as well.
After a fitful Spring your lawn is coming in nicely. The shrubs have taken root, the weeds are gone, and the yard looks like a golf course. So, let’s just let it go for three months. SERIOUSLY? Your grass will look like a dying wheat field, and the infestation of critters will keep animal control busy for a week. It will take years to get your lawn back.
I get it, and so does anyone else that has studied a martial art. You want some time. So take it, but not by stopping cold turkey. If you’ve been attending three classes a week (my personal recommendation), then cut back to two, or even just one. But don’t stop.
Remember Newton’s First Law of Motion - a body at rest tends to stay at rest, or words to that effect. I’m not sure Sir Isaac ever studied Karate, but he sure knew a thing about motivation, though I think he called it inertia. Once you stop attending classes, the body will begin to lose tone, your reflexes will diminish, and that which had become instinctive will atrophy into mere memory .. and then fade.
You can cut back (for a while), but “taking a break” is code for “I’m bored.” Find out what is really at the heart of your issue. Maybe you need to change focus from fighting skills to forms, or from techniques to conditioning. Change up, shift your focus, you can even cut back a little, but don’t quit as you'll be initiating a disatisfaction cycle that never really ends well.