1 - First you have to create a Solana wallet.

We recommend the Phantom wallet :

Phantom — Crypto & NFT Wallet — Solana | Ethereum | Polygon

For a detailed tutorial, click here.

2 - You have to buy some Solana token $SOL to fund your new wallet.

The best way is with your credit card using Stripe in your Phantom wallet.

You can also buy some with a credit card or a bank transfer from a centralized exchange, like Coinbase, Binance or Swissborg if you have an account there.

Coinbase - Buy and Sell Bitcoin, Ethereum, and more with trust

Invest in crypto assets the smart way⎥ SwissBorg

3 - If you bought from an exchange (not with stripe) you now have to send your $SOL to your phantom wallet.

The procedure should be explained clearly on the centralized exchange you chose.

For an example, this is the tutorial of the Binance platform :

https://www.youtube.com/watch?v=H5LEulOcJAs