It totally depends on your investment decisions whether the winter will soon end or not. If you buy bad tokens or coins then there is not much hope that they will appreciate in price.
Yes, you're right.
In 2017 Bitcoin price started increasing from around $400 and it hit $20,000. But, Litecoin started increasing from around $4 and it hit $320.
Bitcoin gained 50 times while Litecoin gained 80 times.
There are some other coins who gained more than 50 times and some didn't able to gain at least 50 times.
Investment in Bitcoin is safe but the alter coins give you opportunity to gain more.
All you need is, select your alter coins very wisely (after deep thinking).
And
"Don't put all your eggs in one basket." I mean, invest in at least 3 or 4 coins.