Which way do you play? Along the 11 ft wall or the 22 ft wall? Do you record instruments with mics at all or are all the instruments from software? Is the issue only a concern for mixing or for recording too? Something you can try for very little money is to use whatever wood you may have laying around to build "frames" that you can hang blankets from and put them 6 feet behind you when you play back to mix. My studio before the redo had 2 bifold doors I got free from Craigslist that I stapled wood blankets that I got from Goodwill to. I set them up exactly how I described with the 60 degree angle formed by the door at the far end away from me. So /\ rather than \/. It helped a lot. Plus my monitors were "bass light" so everything I did sounded bass heavy, as I added more bass to compensate for the bass light monitors.

I think I am trying to find a way to say that there are many options to overcome this. Starting with engaging the -2db cut switch.