I started brewing in 1995(ish). From 2000-2009 my life got more and more hectic with teaching/coaching/step kids in HS/Grad school classes. I brewed less and less, put less and less focus on it, brewed some bad batches...... gradually, I just stopped altogether - it was more hassle and "work" and less fun and enjoyment. I probably went close to 5 years without brewing at all - just bought a keg of something good from time to time if I wanted beer on tap in my house. Around 2008-2010..... grad school was done, kids were on their own, had more time on my hands. One day out of the blue I decided to clean my brew room, clean my equipment, organize and replace any equipment that needed it, etc.
Spent 2 full days just cleaning stuff, organizing, etc. Placed an order for a couple ingredient kits to keep things simple and was brewing the next weekend. 50 batches a year since then and enjoying it more now that at any point in the last 20 years.
When it isn't fun, when it becomes a "chore" - take some time off and come back to it when you can enjoy it as hobbies are meant to be enjoyed.