That's one I haven't owned. They're a fad. They go up when they're in the news and down when they aren't. Elon Mush recently gave them a big push by just a tweet. Of course, he can do the same for anything. Tesla announced it was accepting BTC for car purchases, and the price went up many hundreds of dollars, today.
Those that I trade have something going for them that I believe sets them apart, except for ones I receive due to a fork, etc.
One very much unappreciated crypto is LTC, BTC's little brother. It's silver to BTC gold. I mined several hundred. There are four times as many LTC as BTC. Transactions are smooth, blockchain is efficient, and many firms accept LTC. But they've always struggled. LTC is $200 to BTC $56,000, today.
Best to research and understand whatever you're planning to trade. I think many get in a bind when trading something they aren't too familiar with. That would be Dogecoin for me, and I'd have to totally rely on my limited ability to read the tea leaves (chart analysis).
Maybe look into the number of A.I. algorithms which automate trading. Some have impressive returns. Machines can't be beat playing chess now, so the same may be applied to trading, but that's not my style, yet. :)
But if it somehow takes off...wooohooo
It looks like the bloodbath continues today.
I bought a couple DOT last night when it got below $30. Just a few.