I think first thing first, you should try to bag some fraction of Bitcoin for yourself as it remains the mother of every other coin out there. And also be rest assured that Bitcoin will always be here to stay, no matter what arises.
Bitcoin should be considered as an investment object only from the point of view of stability, in the event of a sharp drop in value, you can exit without losing a large amount, but if you invest in Bitcoin, you are unlikely to get excellent profits when compared with altcoins, where the growth is absolutely incredible.