I am not sure about what I do, can I test it first?

If you are new to bridging and want to practice without risking real funds, you can use the testnet networks. You only need to switch the toggle from the bottom left corner to go from mainnets to testnets.

You need faucet tokens to play around:

• Chiliz faucet: https://spicy-faucet.chiliz.com/
• Solana faucet: https://faucet.solana.com/
• Base faucet: https://portal.cdp.coinbase.com/products/faucet