I tend to be a jack of all trades to be honest, it's got its positives and negatives. On the one hand, you can be easily adaptable and be skilled in a wide variety of things, which is handy of course. However, you might not be a complete specialist in one aspect, which is a downfall.
I've had that problem all my life, mainly in sports though. I'd always be good in a sport and reach quite a high level but just short, also I'd always do multiple simultaneously, so each individual one would get in the way of the other, meaning, in the end, you get left in limbo.
I've tried to specialise in specifics more though as I've got older, I learned that one can't simply be a master of everything, and when I was young and naive I thought, I could make it professionally in multiple things, that's not the case. So essentially, I would say I fit into the "jack of all trades" category, but I've realised that I need to specialise to succeed in what I want to do.