I'm at around 3000mi this year solo, including 7 centuries.
I ride hard enough by myself. With a power meter I find the computer is telling me when I'm wussing out and when I'm not. With Strava I attack hills like they're the last ones I'll ever do. My issue now is keeping my IF (intensity factor) down.
What does " I just hate the idea of having an issue by myself." mean? Mechanical issue? It's pretty rare something will happen that you can't fix assuming you have the right stuff with you.