race anxiety is a vibe to be sure, which could result in me over training out of terror lol
This is the direction a lot of people go 
Seriously, though, I’d pick the plan that best suits your availability and recovery abilities. Follow it as closely as possible, and if things are going well, your endurance rides will get longer as you progress into them.
As you near your event, it’s okay to extend those longer rides a little bit as long as you’re prepared well and adjusting the rest of your training to account for the extra fatigue you’re picking up.
We actually just released a podcast about this topic. It might be worthwhile to check it out!