Welcome! Embrace it - and don't get discouraged! If I had advice to give to anyone starting out - you're going to kill a lot of trees in the beginning. It's ok - everyone does. But you will get to the point where you are making many, many more trees than you kill. I am currently working with 20 junipers that I grew from cuttings... perhaps 10 years ago. They are getting to be big!!
Keep your beginner photos, because you will enjoy seeing your progression over time. Not just in terms of keeping trees alive, but in terms of being able to look at your trees and understand what you're looking at. Enjoy the voyage! I still am!