You have done the right thing, no matter what amount you take to start with, it will look good if you continue to consistently increase your investment in bitcoins. However there are a few things you should know, besides being able to provide great returns, bitcoin also comes with risks, this should be a basic consideration before you get started and shouldn't be a problem once you learn about bitcoin before investing. PMy advice to you, never store bitcoins long term on any exchange.

It's best to store bitcoins in a secure wallet and have full control of the private key, as described by theymos HERE. This effort is to limit and protect the assets you have if you intend to keep assets in the long term.