How old are you??? I hear you about doing 100% because I too do it. From shopping, to loading up, to unloading, bla bla bla. 8 years ago I used to have my transmissions built but then I even added that. If I want to continue I need two new knees and get my butt either walking again if I can of get on the exercise bike five feet from me that my cats use more than I do. Help isn’t coming because I don’t work that way so when the party is over, it’s over. Hopefully not for a few more years at least. Good luck with your decision.