I think you're way further along than I was in much less time than it took me, so I wouldn't be demoralised at all! That said, you've definitely got to be in it for the long haul.
I certainly wouldn't say that Simon, I've thought to myself before that I seem to be getting the hang of this then a moment of cockiness leads to disaster.
I will say though in hindsight I was too ambitious going straight in with the Professional Blades. The Schick blades have been the biggest help in my progression to date. My last two shaves have been great, probably 80-85% BBS which is good enough for me as I shave every day. I am taking maybe a third more time than shaving with a DE although that is much quicker than it was at the start.