It doesn't matter if you're new to Bitcoin or not, anyone can get started with Bitcoin right away by installing a Bitcoin wallet on their mobile phone or desktop. We recommend BlueWallet for its ease of use. There are many other good Bitcoin wallets available.
Once you have a Bitcoin wallet you can generate your first Bitcoin address. Your public Bitcoin address can be used to send and receive bitcoin, similar to an email address. With your wallet software you can generate as many Bitcoin wallet addresses as you want.
When creating your bitcoin wallet you will be prompted to backup your wallet using a 12 or 24 word seed phrase. It is important to secure your seed phrase in a safe place, as anyone who can access the seed can access your bitcoin.