There is no easiest way but if you want to make it a little bit faster i would suggest go trading and invest in more altcoins if you want to make a lot of money that is the best option but if you want to make bitcoin just earn them trough here.

The reason why people should use bitcoin is because bitcoin is a unstable crypto currency witch grows every day. And because it is unstable you can make a lot of money with it by buying and selling bitcoin at the right time.

Everything is possible but no one knows what is going to happen. So you should play save with your bitcoin right now because one day bitcoin might go back to 100$ . But if you really trust in bitcoin you should keep investing in it.