^ This video made all the difference for me as far as hole punching. It breaks it down into such a robotic approach that it really takes a lot of the thinking out of the process and I've found that, just like he says, it works probably 95% of the time (it's not foolproof).
One additional tip I've found that works is that whenever you come across a partial hole (half hole, quarter hole, etc.) you can always just draw that in as a full hole because it will always end up being completed into a full one.
As far as videos for the other sections, I've not found them very helpful since they make everything so wordy (for TFE and pattern folding, for example) that its really hard to follow and takes the intuitive, personal aspect out of it. As far as angle ranking, I think practicing is the only way to get better. I use DAT Bootcamp's generator and use the rapid-glance (look back and forth between two very rapidly) technique and then just go on my feeling.