Ethereum on phantom

New ethereum blockchain user here struggling with buying ethereum… Man I have changed usdt from Solana blockchain tô ethereum blockchain to buy ethereum. However, this seems to be Impossible. I tried to swap It for ethereum and surprise… Not enough ethereum to buy ethereum. Tried on uniswap, and the "transaction reverted during simulation….", If I increase slippage percentage I don't have enough ethereum again.

How the hell can I get some ethereums from usdt?