I am so glad you wrote what you did. I totally relate to you. Lack energy just like you do, like to "plop" on the couch and turn on the television when I get home too.
I will just offer what I do on an irregular basis......my husband and I have started walking aruond our block in the mornings and in the evenings (sometimes I just can't make myself go in the evenings), 6 stretches, 6 yoga poses (same one done 6 times), sometimes 2 minutes of Tai Chi, putting my hands behind my back and pulling my shoulders back whenever I can think of it as my posture is getting bad as I get older (can't remember to do this every day and it doesn't seem to be working well even when I do it), some other leg stretches but only a few. So, as I write this it sounds like I am really "cookin" with this exercising but I am sporatic with it, miss days sometimes, and even when I do any or all I do just a few so Easy Does It and just take it at tiny bite size pieces at a time and on days you don't do it, have serenity anyway. None of us love ourselves unconditionally enough. g