There’s always something to learn. If you fill your day with discovery, you will still have more to learn tomorrow. On some days, I have seen this discourage you from the pursuit of learning, and on others, it has inspired you to learn as much as you possibly can in preparation for the new learning that comes after.
I caution you not to become overwhelmed by influxes of new information. There are plenty of good ideas you must turn away from because you have not fully executed on the ideas of yesterday. Learn slowly and steadily. Process one idea at a time.