Download Phantom Wallet or your preferred wallet from the App Store or Google Play Store for free. Phantom Wallet is strongly recommended.
Get some SOL in your Phantom Wallet to swap for $CAROLRAT. If you don't have any SOL, you can buy it directly on Phantom, transfer from another wallet, or buy on another exchange and send it to your Phantom Wallet.
Go to raydium.io in your regular browser or browser inside your Phantom Wallet. Connect your wallet. Paste the $CAROLRAT token adress into Raydium, select CAROLRAT, and confirm. When Phantom Wallet promps you for a signature, sign.
Swap SOL for $CAROLRAT. The token has zero taxes, so you don't need to worry about buying with high slippage. Although, you may need to use higher slippage during times of market volatility.