What are you supposed to do, if you don’t have time for your interests anymore?

I’m at a point where my schedule is overwhelming me, and I no longer have time to do the things I enjoy anymore. The only way I am able to really motivate my brain to focus or be productive, is to give my self a reward at the end of the shitty task I have to do. What I am supposed to do if there’s no time for the reward anymore? I’m burnt out and sad, thank you for reading my horrible punctuation.