I don't think investing because of Halving will be wise decision. We have to focus on the price find the dip for investing not only the occasions.
Bitcoin is valuable and will remain to be. Halving is not exactly the main cause of its increase in price and it does not mean that since halving is done that bitcoin will not increase anymore.
I think investing in bitcoin in stable periods of time is very wise. You are accumulating more and more and soon you will see so huge returns.