Place some organic compost on the surface of the soil and mix it in well prior to planting. Water the prepared soil prior to planting. Plant roots should never come in contact with dry soil. Use small plants from the nursery rather than planting from seed. Growing from seed takes more experience.
Smaller plants are easier to grow for the novice gardener.
Select plants that do well in your area. Save the exotic plants for a little later in your gardening career. Check with your local nursery for a variety of plants that are suitable to your location. Water as soon as you are finished planting to settle the soil around the roots. Do not add fertilizer until you begin to see new growth.