I think the best method is to store crypto in a wallet where you control the private key, such as a hardware wallet or a software wallet. Exchanges can be vulnerable to security breaches, and if your funds are stored on an exchange, you don't have direct control over the private keys. Also When it comes to short-term trading, many people use exchanges like Binance, KuCoin to buy and sell cryptocurrencies. These exchanges provide a convenient trading platform, but it is important to be aware of the risks involved and take the necessary precautions.