• Do your research on the legality of Bitcoin in your country.
• If local trading is allowed, then you can sign up on a local exchange platform, deposit your fiat and withdraw BTC

Also, decide on what level of privacy you want. Some users want to remain completely anonymous, this would require avoiding KYC, using decentralized and peer to peer platforms to buy and sell bitcoins. You can also learn about mixing and coinjoining services so as to  blur the flow of transactions and make it untraceable.