Mental Health Support

you are in a wheelchair the height allows for "sliding" on and off the toilet. That's why its ADA approved. If using a walker the "lift" back up to the walker will be less strenuous. If not wheelchair bound presently but find it too high, I suggest purchasing a step stool to use as a foot rest when sitting on the toilet. The one I have is 19x20x4 inches. If the person is short an 18 inch toilet would work.
There is great debate about sugar in Gatorade or any e-lyte drink. Some people register their objection because sugar can cause candida, exacerbate diabetes, etc. Sugar is added to help the e-lytes bind and be absorbed in the body. Some form of sugar is required for the brain to work! Without sugar we die. Sugar substitutes are not good. Too much of an e-lyte can disrupt the potassium level and that's a bad condition.
If doable, try a Manuka honey mixed in hot water to dissolve and then ice added to cool. The 18 and higher numbered Manuka honeys have better antibacterial properties. If necessary the drink can be strong on the honey at the beginning and then the honey can be tapered off to an acceptable flavor to drink as water.