It was 4 years for me in March and I still don't feel like an "expert". I feel more comfortable but I'm not all the way there! I don't think I'll ever be. I'm also still learning new things and techniques every week online. People are just SO creative. I'm also learning I don't have the desire to try every single one any more. I'm sticking to the pours I like at this point! Some like the spin swirl was one I definitely wanted to try but things like the teardrop don't interest me. I love my tigerstripe (favorite!), ITP swirl and hanger swirls!