You have the right idea. I would extend your "I don't bluff with more than 8 outs" line. Instead, do so against people who fold too much. I would also say don't bluff with less than 7 outs against a calling station. There's too much value to be had with a made hand against this opponent. Since you're at 10NL, sometimes you'll be at a 6-max with 3-4 bad calling stations. In this case I barely ever raise, and almost never bluff after the flop.

The rabbit hole goes deeper.