I'm flying to los Angeles in a few weeks. Will my regular drivers lisence work? Or do I need this 'real id'?

I use my regular license all the the time.

You'll be ok with WI ID. Starting October 1, 2020 "every air traveler will need a REAL ID-compliant license, or another acceptable form of identification, for domestic air travel.

Wisconsin Driver's License is acceptable.

You are ok with a drivers lic.

Depends on the state, some states don't meet faa required documents