Security and Best Practices
It's crucial to understand that decentralized money means you and only you are responsible for it's safety. At this stage of the game, it takes a certain level of technical competence to manage crypto assets safely (although exchanges like CoinBase are building a brand of safety... setting the stage for mass adoption.)
- Bitcoin Cash (usually by ticker BCH or BCC) is not the Bitcoin you are looking for. It's a fork also known as "BCash." Unless you are playing the miner game, you don't want it!
- Don't visit or buy from bitcoin.com because they are trying to sell you BCash. You don't want it!
- Before you do anything, dedicate a new email address with an encryption service like @protonmail. Use it only for your crypto accounts.
- Use 2 Factor Authentication and I recommend the Authy app, which can be restored if you lose or change phones. Make sure you keep backup keys in very safe place.
Crypto assets usually have an associated software wallet -- basically an app. Often the only option is a native, core wallet and there are 100's of examples. Others, like Exodus, help you manage 10 or more cryptocurrencies. Serious Bitcoin HODLers store their coins offline in paper or hardware wallets (Trezor and Ledger Nano are favorites.)
The fundamental concept is a crypto asset has a public key and a private key. The immutable ledger of the blockchain let's you and everyone else know with certainty how much "asset" is accounted for with that public key. The private key (encrypted password) is your claim to that asset. If somebody else gets that key, you are screwed! These are distributed, de-centralized networks. There is not a central authority to sort it out.
Again, it's your responsibility to protect your crypto assets. There are many kinds of wallets and even more opinions about which are best. Diversifying your assets (spreading around different wallets) is recommended. Storing backups of wallet files and password keys with a friend or relative is also a good call.
Definitely do your own research and due diligence. What works best really depends on how you operate.