Basic theory:
1. Do two perimeter passes, clockwise to shoot all clippings onto your own lawn rather than street/neighbors.
2. Do two passes around each building, counterclockwise to shoot all clippings away from building/patios.
3. Pick a property line as your alignment, and start making stripes.
4. Learn to do K-turns (or "Y-turns") at end of each strip. You do not pivot on the spot, that will tear a divot out of the lawn at the end of each stripe.
5. Use a different property line or diagonal for each mowing, preferably having 4 different directions (N-S, E-W, NE-SW, NW-SE) to even out wear and rutting.
There are many finer points, but this will get you started. Oh, and learn to use mower deck lift pedal at every bump, esp. if deck is 60" or over. After some practice, you may choose to reduce your perimeter passes to one, after you've learned more efficient K-turns. It's a matter of care versus speed, and I tend to do just one perimeter pass but two passes around buildings.