Doing enough in a day

I notice I have recurring thoughts like: “I’m not doing enough”, “I could be doing more”, “I need to use my time well”. Although these thoughts cause me to feel anxious, it’s almost like I don’t want to let them go or change them, because I I feel like if I didn’t think these thoughts, I wouldn’t get as much done in a day as I currently do. For example, I ended up with some free time I didn’t anticipate on having yesterday, and instead of my usual once-a-week workout, I scheduled in an extra workout during that time. I wouldn’t have done that if I wasn’t thinking those thoughts (I probably would’ve spent that free time on my phone or watching something instead). In a way, thinking those thoughts makes me feel anxious, but also helps me get more of what I want done — is that okay?