Hi Gary:
Thanks for sharing your first song. It certainly has a "nautical feel" to it and I enjoyed my listen. Improvements? Just so you'll know, I've never written a song that could not be improved... but eventually, you have to "come up for air" and let the "chips fall where they may!"
Here's wishing you the best in your song-writing career and your health issues. Let's face it, most of us here are not spring Chickens (except for Mason) and life's challenges provide us with opportunities to overcome them and continue to enjoy the rest of our individual adventures. ----Dave Rice