Would you change anything about this Cancun/Tulum itinerary?

Hey all, planning a trip with my cousins (5 of us, ages 21–27) from May 8–16, and wanted to sanity-check our plan before we book everything.

Biggest question: Is it a bad idea to drive from Cancun to Valladolid at night (around 7ish PM) as first-time visitors?

Flights are scattered; we all land in Cancun throughout the afternoon/evening on the 8th, and leave the morning of the 16th.

This is what we’re thinking daywise:

1. land in Cancun, pick up a rental car, drive to Valladolid (late Airbnb check-in)
2. chill/explore Valladolid
3. Chichén Itzá + cenotes, then drive to Tulum in the evening/next morning
4. Stay in Tulum 3ish days (mostly beach clubs, cafes, going out, etc.)
5. Drive to Cancun, Airbnb check-in, Coco Bongo at night
6. Isla Mujeres day trip, probably past noon
7. fly out

other questions:

1. Would it be better to stay in Cancun the first night and leave in the morning?
2. Does this route make sense, or would you rearrange it?
3. Too packed or pretty reasonable for almost 8 days?

We’re renting a car, budget is kinda mid (not backpacking but not luxury either), and mostly just want a mix of relaxing and going out. Open to any suggestions/changes. If something in here doesn’t make sense, feel free to call it out lol