Most likely you could make a lot more profits in a couple months because of the halving.
Yes if a person sell all his bitcoin after the halving there will be a lot of money to be taken because halving event is giving us so much profit and the value of bitcoin is going up.
Many people see that the halving is coming but the most people are thinking that the value will not even rise in the halving, but you never know what can happen.
And that should be perfect if you can make more profit in the future, but you dont know when the time will be.
It depends, if you have purchased at lower price then current price then you should sell some of it, and rest keep for halving, and who knows if price drops before halving you can buy some more of them.