It's normal to want to sweep your own leaves, repair your own house, or clean your own garage. Heck, I'm a gallant and I do all of these things. No asthmatic wants to live in a bubble.
And besides, the goal of taking your preventative medicines in the first place is to allow you to live normal lives, which is something that most "normal" asthmatics should be able to accomplish.
I highly doubt any asthmatic is a true Goofus either. When I was a kid I used to take my medicine, until I was feeling good and got busy with other things. I really wasn't a Goofus asthmatic, but a kid who just wanted to be normal.
Chances are you are a normal asthmatic too who just wants to live a normal life. So long as you are making a gallant effort, you can still consider yourself a gallant asthmatic.
See also:
Which Asthmatic Are You? The 11 Asthma Personality Types
5 Steps to Controlling Your Asthma
