Hi and welcome. First, get rid of the idea that you set action by changing the neck angle. You set action by changing the height of the saddle. When a straightedge laid along the frets just touches the top of the bridge, the angle is correct. Place a capo at the first fret and hold down one of the E strings at the neck/body joint (usually the 14th fret) and measure the gap between the string and the 7th fret. It should be about the thickness of a sheet of paper. That's called "relief" and you adjust it with the truss rod. Changing relief will also change the action height so set it first. When the neck angle and relief are correct and the low E string is 3/32" or so above the 12th fret with no strings fretted, the action is correct. You should have some break angle but personally I don't make a big deal out of it. I have an Alvarez beater that has little break angle on the high E and it doesn't seem to matter, at least to me. And last, I've never paid the least attention to how high my strings are above the soundboard. I suggest you worry less about it and more about whether your guitar is playable.