I’m 19 and I’m 100% invested in an investing world index(FWRG) is this not enough volatility

I’m 19 and I feel like I may be silly going 100% into a world index as it won’t give me enough volatility especially if a resection is coming should I not be more exposed ? Would I be best adding a more volatile stock such as Nasdaq 100 or going 100% S&P500?