oral surgery

I've been loving oral surgery. I am really considering doing the extra 4-6 years to become an oral surgeon. However, I feel so lost. I have to apply for these externships so I can use my breaks to do more oral surgery (instead of diving!). I feel like everyone else already has all of this done, they know everything. It seems almost too late for me even though it is only half way through, or less, my third year. I feel too busy to be doing the research I need and getting letters of recommendation, etc. I'm sure I am fine but it seems like my chances are lower of getting in because I didn't decide as a 5 year old that I wanted to do maxillary advancements and cleft palate repairs!