You need to install MetaMask extension OR Trust Wallet app - in order to send ETH properly.
Download MetaMask from https://metamask.io/download.html
More info on https://metamask.zendesk.com/hc/en-us/articles/360015489531-Getting-Started-With-MetaMask-Part-1-?fbclid=IwAR0ttju1ocQmFRaGXZFWc77HVTh1dI2PfZgVAUunukD4OGen21F_jN7QTBU
Download Trust Wallet app
for Android from your playstore on https://play.google.com/store/apps/details?id=com.wallet.crypto.trustapp}
for iPhone from Applestore on https://apps.apple.com/us/app/trust-crypto-bitcoin-wallet/id1288339409
Click on create account, write down the 12 digits words on paper and verify them. Once you open a trust wallet, click on receive and copy your wallet address. Save 12 digits words carefully for potential future use!
You can buy 0.11 ETH by credit card inside of MetaMask OR send it to your wallet (from Coinbase, Binance...)