I had a friend give me a bunch of flakes,I learned pressure flaking before I learned percussion,Then I learned a bit of percussion,then I learned to spall out big flakes from big rocks and so now I can do it all okay,I of course did it backwards but I'm there now. I learn alot every time I go around other accomplished knappers and watching youtube videos has broadened my understanding considerably. It's a journey. Guys that start right progress much faster than I did. It can be aggravating,fun,addictive. You will be feeling good when you can make good working arrowheads and go shoot stuff with them. Very satisfying. Keep going. Best Regards ' Frank