The truth is that the $120,000 is very feasible to be hit by Bitcoin, even in this current bullish season, but we should also think minimally and apply some caution so that it will not mislead us. Besides, let me sound this as a note of warning to you, no one knows what will happen in Bitcoin emphatically, we are all trying to speculate. For this, anyone whose speculation is not constructive enough should be disregarded. Fine, you heard that Bitcoin would hit $120,000, asking how from those who said so is a very good way to start. This is how you know they are serious with their utterance.
But for me, the market is difficult to speculate at an upper end that it has never reached before and I believe those who are predicting such are only doing some kind of guesswork. This could be based on the assumption of what they feel have happened and using it to guess what could happen afterwards. But the market doesn't work like that, it can disappoint the most promising guesses at times.
Lastly, we need a break of the current ATH at $73,830 to start with, and if that level could be breached successfully with a serious bullish trend confirmation, then $100,000 may be possible over time before even thinking of the $120,000.
Being careful and being too careful could be the difference maker for money making. We know that it is going to be something great, it will be 120k, so we should not really avoid it, make as much investment as you can afford to (do not invest money you can't afford to lose) and you should be fine, because it will go up that much without an issue.
I personally believe that the reality we are living today isn't a simple one, and it should take a while to be better, it can't be really all that crazy, it needs to be considered as normal. I personally believe that the best way to approach this would be just realizing that we are going to be doing just fine, so investing without fear is a good idea and everyone should try to do that.