Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. Philippians 4:6
A simple way to think about prayer can be summarized in the acronym ACTS
Tell God words that describe attributes (majestic, wonderful, might, graceful, all-knowing, creator of the universe, loving Father, etc.)
Talk to God about your life and your shortcomings.
Communicate everything you are thankful for.
Share with God your personal needs and especially the needs of others (healing, finances, our nation, etc.)