Bitcoin is, in fact, a long-term investment, so you have to accept the trade-off of losing or not. If you are a lover with a large amount of assets and want to accumulate them, choosing bitcoin is a good thing. It may take a while, but it's definitely a profitable investment. If you have few assets in hand, choosing altcoins will be more reasonable than bitcoin because the price of altcoins can fluctuate very strongly. And choosing a good coin can be an opportunity to raise money. In addition, you also need to divide your investment capital into several parts to avoid risks and increase the chances of a good ROI.
True opinion, this is exactly what I did in 2017-2018, when I decided that if I kept money in bitcoin, then the result would definitely be, but after a very long time. And then I was looking for altcoins. Decred, Lisk, Waves - I invested in all this, and then, after a few weeks later, I woke up and saw that the price of these altcoins doubled overnight. This was the norm at the time. But the principles of the approach are the same now - if a small deposit, then you need to risk more.