Acrylic Paint Challenges

I know that I have written about acrylic paints before. They are surely a hard nut for me to crack. Still, I am determined to figure out exactly how to at least manipulate them to produce what I want. This painting entitled, "Southern Belle". It's fairly large at 36x48, on a gallery wrapped canvas and is indeed, painted with acrylic paints. The painting is mostly various shades of green, grey and white with far fewer shades of yellow than this photo shows.
After this painting, and others that I have worked on, I think that it is fair to say that the chasm between oils and acrylics for me, is vast. Manipulating the paint is so very different that it would be hard  in a few paragraphs to begin to explain. The feel is different, the colors are different, how you mix and apply is different and how you think is different. The best thing in my view is that the acrylic paints dry so very quickly that one never has to worry about drying times, layers, "fat over lean" and other old ways that oil painters have been working for eons. I have started using retardants and gloss mediums, but still struggle with that as well. I seem to also paint more "graphically" with acrylics than with oils. Getting the subtle shading is so much more difficult with acrylics as there is virtually no blending on the canvas because drying time is so fast. Acrylics seem to be so much more spontaneous because they simply HAVE to be and oil paints allow for more thoughtful deliberation.  I think that it would be interesting to do a study on personality types of painters and which kinds of personalities prefer oils, watercolors or acrylics. I think that the Myers-Briggs folks should develop and instrument to see how this goes. The big question is this...does the artist pick the medium or does the medium  pick the artist?