Learn about the basics first such as:
• Bitcoin wallets
• How Bitcoin works
• What is Blockchain
• Types of wallet
• And different kinds of investments
Second Learn what kind of investments you need to do, here are:
• Trading
• Holding
When you've decided what kind of investment you're going to do start finding exchange where you will bought your first bitcoin there's a lot of platforms where you can buy bitcoins such as:
• LocalBitcoins
• Binance
• Coinbase
• Just search on the internet.
NOTE: You should know the risk you're going to face when it comes to investment remember that there's no assurance that if you invest you're going to earn so invest only what you can afford to lose.
Bitcoin investment and trading is a wondeful job to do but it also needs to be focus on. Every one who aspire to be a bitcoiner needs to learn a lot how to work hard in this indutry. I suggest that patience and right timing are the two main thing you should focus on when you want to be successful in this career.