I'm not an instructor, but it seems nobody else will say anything so I might as well throw my 2c in.
1. When a position is difficult, even with ball in hand, there is no shame in playing safe. Maybe you can play a creative safety, where you break up the cluster with the object ball, while hiding the cueball? Your opponent will allready be on a foul, remember, so cranking up the heat a bit can be a good idea.
2. Less is more. If I can get a good angle on my next shot with minimal movement, then I will mostly prefer a shot choice that allows that.
3. In general it's easier to control a soft follow shot when you shoot shots that require some movement, so unless there are strong reasons against using that kind of spin, in tend to favor it over all others when I have ball in hand in those kinds of situations.
4. I position my cue ball in such a way that the cueball follows the extended line formed by the intended angle. I play "into" the angle, not across it. If that means I have to touch an extra rail, then I will sometimes do that, even if the cueball must travel a bit longer. In general though, I favor caution. If there is any chance I might get hooked, I won't get fancy.