Age has no bearing on expertise. The easiest way to become an expert is to practice. The best way to enjoy what you are practicing is to do it because you want to. Now, you just have to spend an obsessive amount of time. Someone will invariably ask you a question which, depending on where you are in your obsessive amount of time, you will be able to answer. Welcome to being an expert, level 1. Keep going, for as long as you like, answering questions as you go. The more good answers you give the more expertise you are displaying. Don't worry, you will get some questions wrong. Study, implement, read, learn, repeat. Like I said, Age has no bearing on expertise. Just dedication and passion(/facepalm) .