My experience is no different from yours, even choosing very carefully you need to be aware that these thing happen. And the worst thing is that some of them will never recover.
When I had checked my alts in portfolio everything went down. I had bought some at ath price then it went drops down suddenly. When the market was like this I just hold into my coins rather than selling and got panic all. Thus, I just wait when it will rose on earning profit.
It’s still negative for me
From buying monero gold , to investing in hawala lcwp bitcoinwhite, litecoin and have been affected a lot by the bloodbath
I have waves tho with more profit that others, but I think once BTC is stable, everything will come together to the moon
I started to buy BTC for 8000 $ , then part of the funds began to buy altcoins . Now of course a lot in drawdown , but I think it's not long
I have not been selling anything since the new year, too unprofitable positions. I spend Ethereum, NEO and not much bitcoin to participate in the most promising ICOs, as there is not enough money for everything. And I can not refill the balance from selling altcoins. This is how my trade looks. Only rare purchases.
Since January to till now all those who made comment on this thread saying they are holding their alts, I am curious what position you are in now? I am now in 57.98% loss since I bought all these alts. I had 1.24864106 BTC on trade according to today's market they are now 0.58217789 LOL.