2nd D.U.I. in 2002, What do I need to do to get my California Drivers License back?

  In 1999 California,  I was convicted of Willfully under the influence while in possession of a loaded and Operational Fire Arm (While on Tylenol 3/Codeine, my prescription, I basically broke my neck In the Army as a Paratrooper).  In 2002, I got a 2nd DUI charge, for actually driving after drinking.  I did probation and got a Stay on the 18 month program since I was living in the V.A. in W.L.A. for spine Treatment, for about a year and half.  I got fed up with the V.A. and moved to Thailand for 3 years with the Courts Permission.  When I came back in 2007, I had a warrant and Taken to San Bernardino where I stood before a Judge and was granted an indefinite stay on Alcohol school, 2nd offense, which needed to be completed to California standards before I could get a new Drivers license.  I haven't Driven since 2002.  Can I get my license back now?  I still haven't done the 2nd Alcohol school in any state, as the Judge Ordered.

  In 2012, I had a urinating in public, that was bumped up to misdemeanor indecent exposure.  In 2017, I had a disordely conduct Infraction, This was Oregon.

  Can I get the 2nd DUI expunged to a misdeanor and get my license back that way?

  It was 18 years ago, and I am not on scripts as often anymore.  I am a Disabled Veteran, 40% Service connected ($617/m) since I was 24, and on S.S.A. ($960/m after Medicare) since I was 27,  reluctantly.  I have moved back to California Temporarily, and just grocery shopping without a car nearly breaks my bank.