Here are some ways you can consider:

Diversify Your Portfolio: Ensure that you have distributed your portfolio wisely. Avoid putting all your assets into a single cryptocurrency. By diversifying your portfolio, you can take advantage of growth opportunities in various cryptocurrencies without having to buy more.

Holding and Staking: Some cryptocurrencies allow you to earn interest by holding and staking them in your wallet. Learn about cryptocurrencies with this feature and how you can generate passive income by holding them instead of making additional purchases.

Participate in Yield Farming: If you already have cryptocurrencies, you can participate in DeFi (Decentralized Finance) platforms for yield farming or liquidity provision. This allows you to earn profits by providing your cryptocurrencies for financial transactions.

Leverage Dollar-Cost Averaging (DCA): Use the DCA strategy to invest a fixed amount of money each month into cryptocurrencies. This approach helps you purchase cryptocurrencies over time without needing to decide when is the best time to buy.

And continually learn to make the best decisions for oneself.