One can see in your post that you have not been in the crypto business that long. If you take a closer look at the Bitcoin chart, you can see that Bitcoin has always had longer sideways movements in its history. Especially after a strong price increase. It's the same this time.
Of course, you can now switch to altcoins now, but the separation between good and bad altcoins is just beginning, so you have to choose the right altcoin to really take a profit. Bitcoin will make its next push sooner or later, probably towards 100k. That's why most Bitcoin investors have always been right to sit out such phases and not trade in other coins.