LPT: Make slightly-beatable time estimates even for yourself, then actively try to be earlier than you estimated
On the surface this seems like a silly game or even cheating, but it's a very pragmatic way to get more done, and reduce stress while doing it.
It makes you break things up into clearer pieces, think about how to do them, prioritise carefully, and stay focused on what you're doing. On average you'll be ahead in most things, which is nice. As a result you accumulate a buffer of "ahead time" to more easily handle the remaining things that run late. #entertainment