10.5 months breastfeeding and my supply has dropped to about 6oz pumped per day. Should I

I've tried everything I can think of. Everything my lactation consultants have recommended besides dom. I pump for an average of 3 hours a day plus breastfeeding full time. I've been triple feeding for months. The only thing that *might* help is if I pump closer together like a newborn would. I've tried power pumping and that hasn't ever helped (2x a day for 1 week at one point, and 1x a day for two weeks at another). I have only seen decreases taking supplements (with and without fenugreek). So if I want to pump every 2 hours I'm going to need to get a Willow or something for work. But I really am only pumping for another 1.5. Is this even worth it?