Yeah, my wife and I had a bit of a fight this evening. We have another trip scheduled (to New York) this Saturday and I said I wanted to drive to the airport. She is the morning person, so she was going to have to drive, and she does not like driving in the dark. She wanted to take an Uber, and I'm too wary now. So, it looks like I'm going to have to drive while I'm still asleep.
Since you are in San Juan Capistrano you could take Amtrak or Metrolink to Union Station then the Metro Red Line, Blue Line and Green Line (or whatever they call it now) to the closest station to LAX then bus to your terminal. Or take Amtrak to San Diego and Uber, Lyft or Taxi to SAN and fly out of there.