Is It Feasible to Daytrade Only Using Coinbase and Gemini?

I’ve got a nano ledger s plus and I’m mostly a holder. Thinking about jumping into some day trading. 1. Can I make it work using just Coinbase and Gemini? Like, do I really need Uniswap or PancakeSwap? Heard that MetaMask is a wallet too. I just wanna know if I can stick to the main coins for trading. But aren’t these coins less volatile? I mean, I can’t expect huge gains or losses, right? No access to Binance here. 2. So, do people just leave their crypto and cash on the exchanges or do you usually send it all to a hardware wallet?