Trust and patience are crucial if you're going to invest in Bitcoin. That's how you can bear to continue holding and not be tempted to sell until the price reached your desired price to take profit. But of course you need to dig deeper first to know what you're getting into. If you already gain knowledge then have plan on how you would like to accumulate Bitcoin. On the other side DCA strategy is good since you don't have to mind the price before buying and it's best for long term gains.