It is more possible than you think but more complex than you imagine. I recommend that you study poker more, play and based on your experience try to detect bluffs. Some of the things to keep in mind are
1. the rival (I give a brief summary)
rival who never bluffed: why would he bluff you? It is very unlikely that it is a bluff.
rival who has taken advantage of you in several hands: he knows that even until the end it is easy to get you out of hand. don't leave it and start controlling your hand
opponent who bluffs very often: generally these players will bluff you very hard with so many combinations of draws on the table. but the problem is that they will also do it when they actually complete letters. It is very difficult to guess them, but it is also easy to get chips if you play them passively (as long as you have the best hand)
2. amount of chips in the pot, e.g. it is very rare for someone to bluff for 130bb when the pot only has 10bb, it is not profitable at all.
3.position in which the player plays
4. hands with which the player enters often
5. number of hands played
6. importance of the tournament
7. tournament instance
8. intuition, courage and luck. Whether you want it or not, you always need a little of these 3.
I repeat, understanding is very complex and I recommend that you take the time to study and put into practice, those who call you a crystal ball are the tightest cardschat players.