Hi Ferdy,
First I’d advise you to go through the Academy learnings, as much of the basic stuff (including creating “wizards” as you described her) are covered, and they’ll save you a lot of time and frustration :)
That being said: Microflows and pages (can) have parameters, meaning that you can create and pass and object from a page to a microflow and to another page (or microflow or whatever), thus achieving the flow you want to create. On the final page you can include a save button/microflow in which you commit the object.
Good luck!