I also have a technique that I use when I do not have a MIDI file. I find it absolute important to type in the chords first and then demo the chord pattern against the styles that the stylepicker says should work. Here's my tutorial. Hopefully it helps. It's worked wonders for me. I will say that nothing is going to give you an exact copy but that's not really the purpose. You want to capture the feel of the song you're trying to copy.

https://youtu.be/xWL_owkQgqU