Money. It's a good servant but a bad master.

I always had the uncomfortable feeling that if I wasn't sitting in front of a computer typing, I was wasting my time - but I pushed myself to take a wider view of what was "productive." Time spent with my family and friends was never wasted.

Your unhappiness doesn't help anyone else - and in fact, as I mentioned in another answer, happy people are more altruistically inclined. So happiness is not a selfish goal.

Outer order contributes to inner calm.

Say “no” only when it really matters. Wear a bright red shirt with bright orange shorts? Sure. Put water in the toy tea set? Okay. Sleep with your head at the foot of the bed? Fine. Samuel Johnson said, “All severity that does not tend to increase good, or prevent evil, is idle."

Step by step, you make your way forward. That’s why practices such as daily writing exercises or keeping a daily blog can be so helpful. You see yourself do the work, which shows you that you can do the work. Progress is reassuring and inspiring; panic and then despair set in when you find yourself getting nothing done day after day. One of the painful ironies of work life is that the anxiety of procrastination often makes people even less likely to buckle down in the future.

September is the other January.