Create a MetaMask Wallet using either a desktop computer or an iOS/Android mobile device. Purchase ETH on a centralized exchange (CEX) like Coinbase, Binance, KuCoin, etc.
Transfer your purchased ETH from the exchange to your MetaMask Wallet. Make sure to double-check your wallet address to avoid any mistakes.
Now go to Uniswap and connect your MetaMask Wallet. Paste the token's Contract Address into the swap interface to trade your ETH for the desired token.
Once the transaction is complete, add the token to your MetaMask Wallet by importing the contract address. Now you're all set! Welcome aboard the next rocket to the moon, just import the contract address to view your holdings and track your earnings.