Hi @Garysueo and welcome. I’ve been a sitter with TrustedHousesitters for many years and I enjoy sits for both long-time and new owners. When I’m the first sitter for owners, I find they are grateful to have my guidance and follow my suggestions.
I suggest you review Angela’s top 10 tips for owners and make sure you have these points covered.
As has been said, adding your listing to your forum profile will also allow forum members to provide constructive feedback.
As an aside, many of us are ‘not young but not old’, so you’re in good company. 
You may want to avoid using the term ‘fur babies’ as some sitters really dislike that term and will pass by the listing. If you use the search feature here, you will see it’s been discussed in posts.