I grew up going to four day a week schools because our school district was too poor to afford the fifth day. I’d like to go back. For 80% of the pay? Hard to s

I grew up going to four day a week schools because our school district was too poor to afford the fifth day. I’d like to go back. For 80% of the pay? Hard to say. Honestly, my costs are a bit fixed. The problem I have is that even at the ~400k/yr I make, I don’t have enough still. I need closer to 500-600k to feel comfortable. Slice that down by 20% and it’s getting me back where I’m at (uncomfortable). I think I’d have to move and live in an entirely different area where giving up 20% of my income would have no sizable effect on my life. (Including retirement and so forth)