Well, I'm humbled. You bested my first time commute of 11 miles, back in December. Get a spoke wrench and check the rear wheel regularly. Your weight and power in your legs is going to place a tremendous burden on the rear wheel.

The bottom bracket will be a liability on the inexpensive bikes when ridden in the rain. My socalled Schwinn mtb bb didn't survive one decent rainstorm while parked outside my workplace. The caged bearings were washed clean of any grease the mfr might have used.

Anyway, don't stop riding.