Time is the key
Some of you know that I'm a student/teacher of martial arts as well. We just had our four-day test finish yesterday. At the beginning of each six-month countdown process that each group of candidates goes through before they test for their black belt you look at some of the physically and mentally unprepared students and think of how the heck are they going to make it. Time and time again, determination, focus and a plan of attack gets them through. For the extreme cases, they keep trying, and keep trying, failure after failure, and eventually make it.
In my life as a blues harmonica instructor it's been the same as well. I work with very talented students that learn a whole song in a couple of days and others it takes a year... but the key element to becoming a great blues harmonica player, or martial artists, is not raw talent, but tinacity.
If you want it... whatever "it" is, stay on the path, you WILL get there, you just don't know when.
P.S., have fun while you're doing it ;-)