Some cyclists amaze me.

As if disparaging a strong young rider wasn't enough, dropping into highly specific and technical details about things the majority of riders don't care about is a pretty good way to take long rides without ever passing another cyclist. Name dropping S.B. level distance measurements and breathing exercises in a thread about a new rider is like asking a mountain biker to compete in a century. You guys do realize 90% of the people who actually ride bikes don't care about this even after years of riding, right?

HoneyDutch69, 16mph is pretty good - and if you can hang with people running laps with computers & all that other tech, it just means your running stronger than they are even as a newb. Good for you.

A mile is a mile & fast is whatever keeps your heart rate up. All the technical details will just keep you from time in the park. Having fun and riding often is the only way to improve which actually works. Sounds like your doing great.