Big; Take time to learn how to properly sharpen your tools. A sharp tool makes the learning curve much easier. Also make good use of your digital calipers, never rely on bushings or fitting to be an exact match. I think the hardest things to learn on a lathe are long tapers and equal sized curves. What you said about feeling comfortable with your tools is probably THE most important part of turning or woodworking in general. If you are leary, unsure, or tence when using tools, mistakes will be made. The only thing wrong with your progress so far as I can see, is that your not trying your skills on harder woods. Surprizingly harder woods turn much easier than soft woods. Go out in the yard and find a limb that is big enough to turn. Go to the lumber company and ask if you can have or buy some of the cutoffs. many times they cut around knots or other inperfections that make great pen blanks. Ask if you have any questions ask, or look in the library for help. Welcome to the turning famly !!!! Jim S