1. As others have already said, I wish someone had convinced me at the beginning I didn't need all the materials in the shop........and
2. Tie the same pattern until you have it right. Trying to tie a couple of every FOTW then moving to the next recipe does not make one a better - or even a good tyer.
3. Don't be afraid to break the thread - it the only way to learn to build tight flies!
The first 2 lessons have been learned and forgotten frequently in my house!
Cliff