Years actually. I’m constantly jabbing and throw a few right hooks per month.
I don’t think there is any set time or number of jabs that all of a sudden makes a right hook appropriate. Like a boxer I think we just have to feel/sense the right moment.
I look at it like farming. I nuture my field every day so I can harvest whenever I need too. I just make sure not to over harvest otherwise the field won’t keep producing.