Step1: You have to download phantom wallet
Step2: Buy Solana from your centralized exchange, which you are using right now. Eg: Binance
Step3: Send your solana to your phantom wallet.
Step4: Once you receive your Solana in the phantom wallet, press the globe icon in the bottom.
Step5 : Paste this link in the search bar https://raydium.io/swap/?inputCurrency=sol&outputCurrency=8doS8nzmgVZEaACxALkbK5fZtw4UuoRp4Yt8NEaXfDMb&fixed=in
Step6 : Press swap to get your tokens