I got it. Tough runs help build my mental toughness.
I had a great run, mixing hills with pace. It turned out to be hotter than I expected, but it wasn't unbearable. I can't believe I ran up the mountain. It's so worth it because there is less traffic so I can run on the pavement more (pavement is preferable over concrete always), I could just listen to the sound of my feet striding along and look at the incredible view from Panorama Drive.
Also, I'm trying out a new sports drink because I can't seem to drink most, they upset my stomach. I've also become intolerant to the gels so I'm in trouble and need to come up with a new plan for eating on the run (so to speak). Now that db is running I don't have him cycling alongside for those long runs with stores of food on hand in case I need to eat. I'll have to come up with some creative solution.