Very cool accomplishment.
You should consider cutting loose, even for a short adventure.
One option close to home that you can bite off in small chunks is the Buckeye Trail (which is a 1,400 mile trail loop around Ohio).
http://www.buckeyetrail.org/overview.php For cycling, the Underground Railroad trail (which connects Alabama to Canada) conveniently cuts diagonally across the entire state of Ohio. The maps are already made for you to follow.
https://www.adventurecycling.org/default/assets/Image/Rou... https://www.adventurecycling.org/routes-and-maps/adventur... /
You can even just make up your own adventure. Last year my 61 year old dad cycled around most of Lake Erie for 10 days (556 miles) (he caught a ferry from Canada to near Sandusky before finishing the loop to Cleveland).
At some point during my time at Ohio I came across a web page about a couple who canoed the entire length of the Mississippi in the late aughts or early '10s. At least one of them was an Ohio University alumnus, and I believe they were in the process of writing a book about the experience at that time.
While unsuccessfully trying to find that web page today, I came across an article about an Ohio student, Conor Emser, who recently cycled across America through the popular Bike & Build program, but also later kayaked the length of the Mississippi River with a group of four.
http://speakeasyohiou.com/2015/05/14/ohio-university-stud... /