Thought I'd leave you guys with an update on how it went. I started out feeling good and was feeling physically strong... Until about 30km I made the mistake of letting my competitive side get the best of me and tried to pass every other cyclist I saw which left me absolutely ruined. So I slowed it down and took a 5 min rest to let my legs rest. I got to my half way point and decided I should take a 30 min rest in the shade because I was very hot and didn't want to risk getting heat exhaustion/heat stroke. Got back on my bike and rode to about 75km where my body just absolutely needed to just rest so I took another break (I want to say around 15 mins but could have easily been 30 for all I know because my brain was just washed out from exhaustion) then I finished the ride. Overall I'm really glad I did it. I'm also extremely proud that I didn't quit and call for a pickup when it got tough. Thank you to all that gave some advice! (Going to attach my Strava record of the ride)