Well, if you have a good capital to start with which should be higher than $20K. then you can still make some profits with the Bitcoin, only if you hold them for 2-3 years or even more. There are many good investors of the cryptos who predicted that the Bitcoin can go higher than $100k within few years. But, if you want huge profits from your investments than you should try to invest in other altcoins as well rather than the Bitcoin only. Because the top 10 altcoins can make you around 100% to 500% profits within one to two years as compare to Bitcoin. Among the top 10 list ETH, and LTC, can make you some great profits within short duration of time.