As described by John Guttag (MIT OpenCourseWare), with slight modification:
Learning curve is very steep in the beginning, but then it does flatten out. And somewhere along the way most
people have.. somewhat like an epiphany, “This is not as hard as I thought it was”.
And then they feel really good about themselves as they should.
…
So give it a fair shot. You know, don't quit too early. Hang in there. Almost everybody who really does the work gets it
...
The main thing I would encourage people to
understand is it does get easier. Most people who get through the beginning find
they do just fine thereafter.