Welcome! First of all there are a lot of opportunities to earn bitcoins, but be careful before you enter any means of earning btc. The fastest way is to invest, you can also do mining. If you don't have a capital you can always start with signature campaigns. But whatever means you chose, WARNING: there are scammers everywhere so do your research, ask questions it's not a bad thing to ask. Read threads that will help you grow and gain knowledge about what you have decided to do. Everything you need to know is here, you just have to read and communicate with people. Good luck I hope this helps you!