I would say that they're both OK, but I would be more likely to say "clean up everything".

either way is understood the same

I don’t think it matters, it depends on the person. I would say clean everything up.

Clean everything up. Maybe even "get everything cleaned up."

Lets talk about your English improvement! Don't you need any cool language partner like me :) I've been speaking English for 16 years and I've been learning Russian for 1 year so it means we can help each other if you want! If you don't want i will be helpless forever :( Please let me know your decision!