Or maybe you just need to mix it up a bit on your bike. I get really tired of my usual route. It is a conveniently located MUP that is perfect for before work bike rides. But every so often I cannot stomach the idea of seeing that same pavement again. I just need a different ride. And, when I get to that "I'm bored with this" stage, it usually helps me to ride with different people. New riding partners can introduce you to new routes. learning their riding style and working together with new people also introduces a new set of challenges, so the ride isn't boring anymore!

Or, if you are a roadie, try some (not too technical) off road stuff every now and then. That is another way to add some new challenges/interest.

But definitely plan rest days into your schedule! Especially when the weather is good, this can be a challenge. I go through phases where rest days = rainy or cold days. And then when it doesn't rain for a couple of days, I get no rest and my body/mind take a toll. I try to get at least 2 complete rest days a week, and maybe one active recovery day - that'll really help keep you fresh! And keep you enjoying riding!