You don't actually need to have 1 Bitcoin because having a small fraction of it will do, it could still be profitable as you hold it for a longer time. Upon buying Bitcoin do bear in mind that you should only invest the money that you can afford to lose, you don't need to all in because that would pretty much risk to take. A lot of newcomers overwhelmed with the current price of Bitcoin leading them to skip entering but they didn't know that Bitcoin could even grow more than that as a matter of fact it is expected to have at least 6 digits before this year ends and that is the opportunity they shouldn't miss.