Thanks a lot! Drawing is a skill anyone can learn once they accept they'll never finish learning it.
Here's 2 quotes that will put things in perspective:
Michelangelo Buonarroti: 'If people knew how hard I had to work to gain my mastery, it would not seem so wonderful at all.'
Leonardo da Vinci (supposed final words): 'I have offended God and mankind because my work didn't reach the quality it should have.'