I will reiterate that you should go on smaller trips to places you'd like to see, or perhaps just pack a lunch, ride to somewhere that would be nice to eat your lunch at, and then go home. See if you can find some small stuff "to do" like that, where it doesn't matter just how long your trip is. Go for a short ride to pick up some small and lightweight thing, go for lunch, ride to a place to pick berries, ride to a harbour if you like boats and are nearby, or even just ride to a mail box nearby, post your letter and take the scenic route both ways.
But you should get someone to check your bike-fit. I'm quite confident it will help you immensely.