There are a lot of options. I would start with doing nothing. See how you feel about it in a couple weeks. See what happens if you just quit doing the hard parts of maintenance for a while. Possibly try simplifying a little? Dr. Dean Jaubert kind of fell off the map back in the 90's but his systems actually worked really well. Check out his speech from the last MACNA. Or if you are at all like me, just try taking a long nap and some Advil.
I do think there are several ways to cheaply automate. I automated as well as I could. I am able to walk away from my tanks for two weeks at any time comfortably. I use an auto feeder, a calcium reactor and grow Chaetomorphia and or Mangroves in my sump (depending on the tank). I have done 30% water changes two times over the past three years. My ATO is a float valve with an inline stop that shuts off the line if water gets to it on the floor ($3 and $12 parts online). It is painful for me to bend over so the skimmer claning is a little more than I want to take on as a regular task. I have an auto neck cleaner on it and I added a larger catch reservoir. (Those were not as cheap) I hope to move the tank and set the sump up higher to solve all my sump issues.
There are some corals like chalice, that don't do well in my systems. I have several corals and fish that do really well. My eyesight is getting worse and it reminds me that the joy I get from my tanks later in life will not always be the same as the joy I have now. Sounds like your hobby might be hitting that equilibrium between joy and hassle. There is no shame in moving on when the scales have tipped. Just like sports, there comes a time when it is more pain than fun. There is still plenty of joy to be found in other places.
Maybe give your tank to an enthusiast that lives near by and get some joy as a mentor. It might be a nice transition out. You might find a great friend, possibly get to watch people grow along with your newly revived tank.
I wish you the best.