Congratulations on your first ride back in the saddle! 15 miles is impressive. Bike fit is paramount in relation to both function and comfort, so don't try to "guess" what you need. Do a little research, have your pubic bone height, arms and torso measured (some bike shops can do this or you could do an online search). Some people have short legs with long arms, or vice versa or other combinations, so the usual stand over height measurement is not accurate-only a rough guideline.
"Opportunity is missed by most people because it is dressed in overalls & looks like work" - Thomas Edison