I certainly have. Once went months without really wanting to brew (of course, I still did. I didn't have months worth of beers sitting around!)
I had so much going on, it felt like I couldn't afford the time I'd spend doing all of the things I wanted to do for brewing.
After a while, I got caught up on some stuff, dropped a few homebrew-related projects, and simply set aside a half-day for brewing.
I find the best way to enjoy brewing is to plan it out ahead. Gather stuff you need. Measure and prepare water and grain. Then, when it's time to actually brew, you can focus on the process at hand, instead of jumping through hoops to correct problems caused by not being prepared.
Then last night I had an itch to brew, so I threw together a half-batch of Bourbon Barrel IIPA on the spur of the moment. I did a quick-boil BIAB batch with a 45 minute mash, and let it sit overnight outside to chill. How is it going to turn out? Probably not great. It was an experiment, but sometimes winging it can be fun.
Best advice is to relax and enjoy that time. Bust out some mood tunes, maybe have someone over to help brew. Do something different.