I don't think I ever came close to perfecting any techniques before moving on to something different. At some point, I'd keep doing the same thing until I felt comfortable with it, like applique or paper-piecing. But, there are so many wonderful ideas out there, and it seems like almost every day some talented quilter discovers another one, so I will more than likely never learn them all. But I'll sure try! LOL
I really think it's ok to try everything that interests you or makes the job at hand a little easier.