Congrats on the 50 miler, especially on a hybrid, with no gloves or bike shorts, while being chased by dogs!
Take a recovery ride today, and maybe even take a couple easy days. After my last series of hard rides (2 hilly centuries, 9 days apart) I took an entire week off from my commute and just did some elliptical at the gym and short rides around the neighbourhood. The recovery is important to allow your muscles to build back up after a harsh day. Take a day off after your recovery day; when you get back on the bike, you'll feel 10x stronger.