How can I ETS from stateside if I get out in 14 months and am being told I must ETS from overseas?

You must have six months from your DEROS to ETS from a short tour or 12 months for a long tour to return to the states. If extending isn't an option then returning to the states isn't an option

I had a really really bad unit (leadership circle) when i was overseas and all I wanted to do was get out. But I was told the same thing and it was so bad to stay for the rest of that remaining year i re-upped for 3 and went to Ft. Drum (actually turned out to go to Griffis AFB because the contractors screwed up our hangers for the new unit and we couldn't occupy them). Now I can say that second unit, I could just about hug everyone in my chain of command for the contrast of difference from my previous unit. So, if you can shelter in place and ride out the tour, make it your plan. I ended up staying 30 years in the military ...lol.
I see you have a Bachelor's Degree already in Exercise Fitness, is your plan to use that to gain employment? With a lot of places minimizing contact from Covid, employment might be very difficult to attain in the career field right now. If you want to land something with your fresh logistics MOS history your chances are better. Take a look at some of the certifications people are getting in logistics and supply by looking at profiles on LinkedIn of people working in jobs your eyeballing for your next career. Doesn't mean you have to have them achieved by the time your expecting to be working for one of these companies, but if your working on achieving one, you will look a hell of a lot better on resume review.

Have you checked with a Reserve Recruiter? Maybe you could transition to the reserves & maybe go back active later on. Not sure on the ETS overseas, the Army usually sends people back to the States to finish outprocessing/ACAP processing.