thats fine to not know whats next because we are not super humans although you can increase your chance to earn huge if you invest according to what is demanding now in the market i.e metaverse projects or nft's because they are still early and hot right now .
What can significantly affect the price?
theres so many of them actually like competitions from the same themed projects and theres that volatility , etc but if you believe on your choice , you should support it till the end and ignore the negativities .