Plenty of time to learnt then
I'm the same, started drawing a bit and having some lessons when I was in primary school at about 9/10, then did all the art subjects in high school and started doing commissions at 14/15. Finished school and went to uni, still there- typical! And studying environmental management so no where near art!
I've never been fond of people 'teaching' me as such, I learn best from my own trial and error and picking up hints from other artists with a similar style to myself.
Kneaded erasers are the best! I've got stacks of them and rely on them all the time, particularly as I work mainly in pastel, it gets pretty messy without them!
My favourite graphite pencils are Derwents, you can go onto the Derwent website and have a look as I think they list suppliers.
Also have a look on Ebay
, I have picked up a lot of my materials from there for cheaper and brand new! Just look up 'Derwent graphite pencils' and something should come up. I recommend getting the basic set of 12 rather than sticking to only having 1 or 2 of them, you have so much more selection that way.