How to set up a Solana wallet and load coins using your credit card
You need to have a supported wallet with existing coins in it. Currently supported wallets are Sollet, Ledger, Phantom and MathWallet. Sollet and Phantom wallets are okay to get started on — all of these have a Chrome extension wallet.
Link to Sollet Chrome Extension. Link to Phantom Chrome Extension.
An easy, fast way to load coins onto your wallet from your credit card will be through Transak. Here is the page to buy cryptos and get the coins send to your on-chain Solana wallet quickly - https://global.transak.com
It is recommended that you use a hot wallet and not your main savings wallet, for good practice and security when you plan to interact with smart contracts frequently.