I've had comments and interest in my Modern Envelope Calligraphy classes. The reality is that anyone can do Modern Envelope Calligraphy. You are not actually learning a formal style of calligraphy. What I teach you is how to take your natural style of writing and add some 'juice' to it to make it special. Basically, I'm teaching you fancy penmanship that is unique to you.
I did this is in ~5 minutes, did no re-do's, no fancy editing. Just put it on the page.
If you are worried about perfection, you will not enjoy penmanship, lettering or calligraphy. Enjoy the ink, the paper, the pens!