Shutter..

I still don't get really how to handle the shutter speed. I don't know how to manage and how to take control of it especially when I already in the midst of taking our exercises. Looks like I'm having really a hard time with the basic of photography, how much more if I am already taking "high-class-level" photographs?
The problem with me is really on managing the shutter speed not because I do not memorize the EV Table but because I do not know which among the 4 or 3 should I use for a certain weather condition.
Like for example if I am taking photographs during sunny condition, of course, the weather changes so fast.
I am kind of confused to how I should start. I really do not know how, I bet it is mainly because I do not have the what's-so-called motto: "Patience is a virtue".