Training & Nutrition - 1st half century but one problem

Hello there first time posting on this side of the form but I think I'm in the right place

OK so I have my first ever actual organized ride coming up as the title implies it is a half century problem is I have a week and the longest Ihave ever ridden at one time is 18 mile....once. I do hopper roe every day 11miles on my commute I have trying to pick up the speed to build some cardio but my question is what should I expect and what should I take with me if anything special on the ride

You'll probably get more replies in the General Cycling forum. I can move the thread for you or you can re-post your thread there.

As for tips:
The ride is not a race so ride in an easier gear than usual and enjoy yourself.
Eat and drink and rest at the rest stop(s).
Ride with a friend if possible.
Eat a good breakfast (oatmeal, fruit, etc).
Make sure you have a spare tube, patch kit, and pump and/or CO2 inflator, and a multitool.

Pace yourself. Don't get on someone's wheel who is going faster than you usually ride. With all the other riders out there you'll be tempted to go fast at the start but it'll cost you down the road. Anyone can go 50 miles if you stay within your comfort zone and eat something each 50-60 minutes.

I've taken new riders almost that far on flat terrain, it's a very doable distance without any special training. Just stay within yourself; you push too hard and you risk blowing you legs up..., just spin, drink and eat. If you are huffing and puffing and sweating you are doing it wrong...ride smooth.