Dips and rallies is part of investing, it happens in every asset class except t-bills. If you got stressed out, you probably need to diversify your portfolio to appropriate allocations for your risk tolerance. A 100% cryptocurrency position is bad strategy, or no strategy at all.
This is why investment expert talks about investment philosophy and risk appetite of investors. To invest you need to determine your investment profile and also to have a portfolio that suit your profile.
To me, i have crypto and Start up equity in my newly developing portfolio. In the crypto asset i have, btc and Eth. i did this so that i will see what is working well and what is not working well. This will help me to minimize the risk of putting all my eggs in one basket too.