In what order should the renovation be properly performed?

Continuation of renovation... I am planning a future renovation and I am not sure in what order I should delegate/do it partly by myself. I turn to you, CcFounders, can you sort the following tasks in the appropriate order according to how it should be done? :)

1. Sanding wooden floors
2. Replacement of door frames with internal doors
3. Replacement of external doors
4. Complete renovation of the bathroom
5. Painting the walls in the rooms

Please, I ask for your help and knowledge. :)