So my advice if you want to set up a prayer routine (from someone who has had trouble doing so and hasn't been able to) is to start with a daily shema. It is the most common prayer and easiest to find. Saying it by itself is enough for a daven. If you want to, you can also add an amidah.
I personally don't have a prayer routine. I pray by simply talking to HaShem. I tell Him my needs, my wants, etc. I thank Him. I question Him. The only time I ever do specific prayers are during special situations, like a holiday, or at synagogue, or when I visited the ohel recently.
Most important thing is to find what works for you. That's different for everyone. Other things you can do is put up and kiss a mezuzah, wear a star, show gratitude to the world, or partake in any other mitzvot. Sure it isn't prayer, but it's more important. I prefer mitzvot.
And yes, prayer itself is a mitzvah.