Such a schedule looks pretty tight. If I travel alone I prefer to limit my daily trip to 300-350, maybe 400 miles for ease and comfort. If your trip is 1,500 miles long West to East and another 500 miles North to South then the round trip distance should be about 4,000 miles. (You should have the correct number in your Google route.) There is no slack in this schedule, and even if you have a replacement driver (which on such a long trip is a must) then you won't see much on the trip; and if any road is closed and you need a detour then you are even further behind. Same if the car needs servicing or you need a day of rest. You simply won't have much time to meet your friends, and if you do you will be dog tired.
Well, this is a tentative schedule. I haven’t finalized an itinerary yet, and some destinations will probably get dropped due to timing. I do also plan on at least one or two alternate itineraries in case, e.g., a snowstorm rolls across Kansas and Colorado, I could veer south towards Texas. I also could request more PTO, but I don’t want to use up everything in the first month of the year.