Any trading (I would not call it investing) weather it is crypto, stocks, futures or forex, is a risk. With any trading you better know when to exit, I've made and lost money with each, did the best with day trading, you see the problem is not while you are awake and can exit, but when you sleep and those sneaky people across the ocean, come up with a reason to make the markets change direction. if you are long (buying) then they devalue something or start a war and if you were smart enough to put in a stop then you are deep in the hole, same if you were short. Always use stops, but that is the problem with buying crypto, places like coinbase do not have a "Trading platform" so all you can do is "Buy" and hope things work out, you cannot put in stops, The markets tumbled twice this year, May and Sept, the latest tumble was because of a Chinese company going broke. I got out after being in a few days and made a couple of bucks, but that was not the case in the year 2000, I was in over the new year and was behind $30k in gold Futures when the markets reopened. Brokers worked slow back then, I was lucky when the smoke cleared, I was only out $5k. Then came 9/1/11, I was still trading gold futures and had my finger on the trigger when I heard the news, I made no trade, but if I did I would have more than made up for the loss in 2000.
So bottom line if you do not have money you are willing to loose, do not buy crypto, it is based on nothing. No country in the world has gold/Silver or any other metal to back it up, countries like Argentina who decided to make it their currency are not doing their people any justice, imaging going to bed with $10,000 in your bank account and waking up to only have $3000. Then again the USA has no gold backing up its currency, we are what is known as a fiat currency, a currency that has no value , the US mint will keep printing worthless paper money whenever Congress tells them, but it is worth more than crypto.