I started drawing properly about 3 years ago.
Many years previous to this I did a drawing class in university and before that, as a child, I drew scenes of men hunting wild animals. But it was when I started 'really' drawing regularly that I realised how crap I was. After a year and a half or so, I thought, well I give up, things are not getting much better, perhaps I just need to accept that crap is my art and that's what I should do.
Around this time I found Jockum Nordstrom's drawings and it dawned on me that my crap art was still just that, crap!
But I did learn from Nordstrom's work that there is a special 'way' required, even for 'bad', naive or whatever you want to call it, drawing, and this revelation seemed to improve things for me.