Is it better to return to basic training from being AWOL for less than 30 days or return after the 30 days.?

I am 16 days AWOL from basic training. They sent me on a 2nd 30 day convalescent leave and I missed my flight back. I purchased another flight for tomorrow and was told by my "battle buddy" that I should wait until my 30 days have ped and then return. She said they are going to give me an Article 15 and will not start up my pay again. Is that true? But, I want to get out of the military and do not have the motivation to finish. Not only that but I just feel that I've made a mistake and my injuries are only going to get worse. All the other people online that have been thru the process say to wait 'till one is dropped from rolls to go to Ft. Sill or Ft. Knox out-processing so it will only take 1 week to get discharged instead of waiting until my company decides to process paperwork and for med-board or a chapter to discharge me which can take months. I just want my life back.