I heard from banks, the price could stay around 100,000usd
Within four years
It is unlikely that anyone can say exactly how much longer Bitcoin will be near the price and what dollars. I am glad that the level of one hundred thousand was easily broken through, because the price could have hit the ceiling and most likely there was a powerful rebound in the price down. Of course, this would be a great opportunity to buy Bitcoin at a cheap price. And I am waiting for such an opportunity, it is hard to believe that a year ago the price was around 50k, it feels like Bitcoin has always cost 100k. Regarding the main topic: personally, I think that now it is better to split your deposit into parts and start buying with 90k, but definitely not enter the entire deposit.
The current dump is a correction of Bitcoin, and due to this correction, Bitcoin is now below $100K. But this price will not last long, it will start pumping again at any time. So if someone has not started investing in Bitcoin yet, they should start investing without delay and without worrying too much about the price. Start investing in DCA, it is not impossible for Bitcoin to go to $1M, because Bitcoin has crossed $100K. So don't delay, the longer you delay, the more you will miss the opportunity. Right now the price is not very valuable, as it is going to be in the future. So just buy and hold.