I bought tons of bitcoin when the price was at 3k$ and then sold at about 17k$, I made profits then, but now I don't think that the price can go up again...
Will it?
You already made tons of profit already, why are you still complaining? I think you have a pretty much idea as how the market works, sometimes it doesn't go our way. If if will go up then good, if not then you have to wait. We don't have a crystal ball to see and predict what would be the price. Patience is the key here, and besides, as far as I know year-to-year we are still green so there's nothing to be afraid of.
Well, satisfaction is a hard thing to have, most people, even if they already had earned so much, would still not be satisfied, especially when they still have some investments up in the air that is waiting its fate. However, I would say that Bitcoin's trend right now is something scary; however, what can we do, really? I mean, that's how the market works, and as investors, we just have to really play it cool and safe and, at least, make sure that you are doing the right thing when it comes to investing your money so that you won't regret it in the end.