Simply yes, this can be achieve in two ways:
1. Safeguard your private keys and the seed phrase to your wallet, this guarantees that the coins are your as you have the access to it alone,  you can decide to trade or invest with your coins, hodl it for a while and yet still make profit as long as the market has make a shift in price between your purchase date to the selling  date unlike the banks which will rather deduct from your savings as charges instead of increasing it, lastly,  never make use of a centralized exchange and that solve the KYC challenge.