Multiple form application

Multiple form application

Hello, Just looking for the best approach. I spent quite some time figuring out myself but still unsure.

Goal is:
Application for people creating their CV. We will use the Customer Portal for each user to add data and view/edit their own record. The administrator should be able to access all records.
There will be multiple sections, for example:
Personal Details
Qualifications (with some file uploads)
Work experience
etc. about 10 sections

Prefer building each section in a seperate form to avoid having an extreme long form.

question 1.
What would be the best approach? How can you make it so that when the user goes to the next section (next form), it will be linked to him? I read about the lookup field, but he shouldn't have to lookup himself. So it should be based on the logged in user and be automatically linked in the background.

question 2.
I would then add an overview page with all reports together. Could I then also add 'EDIT' buttons for each section on that page, that would open just the form for that section?

Also if you can answer only a part of this, that would be much appreciated.