In addition to bitcoin, as the main cryptocurrency, I suggest you invest into privacy altcoins. Privacy altcoins proved that they will always remain relevant as there is consistent market demeand. Do your research and look for open-source altcoins that are decentralized and provide true user anonymity. I recommend checking DeepOnion, which provides true anonymity by integrating Tor with OBFS4 bridges and MEEK to circumvent ISPs. The developers achieved huge milestones in a short timeframe and the future is very promising, check their development when you get a chance. Stack some ONION and join the AirDrop for more free ONION.