This piece for Malachain collects the advice that holds up in practice.
Ten minutes of sitting still with attention on the breath is a practice found in some form in nearly every tradition, and it asks no particular belief. Sit upright, set a gentle timer, and whenever the mind wanders, which it will, notice where it went and return to the breath without comment. The returning is the practice; a wandering mind is not failure.
Attach it to something that already happens every day, such as the first coffee or the end of the commute, so the habit does not depend on remembering. After a few weeks most people notice a small gap opening between an event and their reaction to it. That gap is where patience lives, and it tends to show up first with the people closest to you.
The most useful step is usually the first one. Pick a single suggestion, try it for a couple of weeks, and then decide whether it is worth keeping. Small, steady improvements last longer than ambitious plans that are hard to maintain once everyday life gets busy again.
It also helps to talk the subject through with friends or colleagues who have tried something similar. Their experience points out the details that guides leave out: how long things really take, which costs were unexpected, and which shortcuts turned out to be a mistake.
There is more to learn on this subject, and the linked website goes into greater depth. Treat this article as an introduction rather than the final word, and check any important decision against up-to-date, reliable sources before relying on it.