I think it is better for you to hold it now, than sell it. You said it so, the price is creeping up slowly but surely. When the price goes up, and at its peak, you will regret selling it now. I prefer that you just hold on for now, and then sell it later.
It depends on bitcoin value. If it is high then sell it if it is low then hold it. But i will just suggest to you to just hold it for months or even years to be more beneficial to you. Because there will be a bigger chance that you can be a millionaire with this but it will always depend on how you will manage it.