My advice is to just buy some. Even just a small amount. Get your feet wet. If you can handle the ups and downs it goes through in a day, go ahead and buy some more. My personal opinion is that the long term value of bitcoin will at least be maintained and more likely will continue to appreciate in relation to centralized national fiat currencies. I'm holding and using bitcoin myself and if I were to sell today I would have made more than any other investment, but will continue to have bitcoin even if the value drops.