If we talk halving event then I have an imagine that the price will up much more than I thought. As you may know, seeing bitcoin price before halving event came and after halving event came there were a lot of change even its price up drastically. We can count bitcoin halving had happened for two times exactly at 2012 and 2016 and you can see how the effect after this event was happened.

This thing will make many investor there have an accumulated and they will have prepared to meet this event. And as you can see now how the price movement and how the sentiment market effect bitcoin price. It means, there are many investor who already buy bitcoin to gain a lot of money from this event. And regarding to all your questions I guess I can't accumulated what profit that will you get but in the essence you will gain money if you buy bitcoin now.