Thank you for your question–and I hope you will always want to know more about God. God loves you and wants to help you and be your friend every day of your life.
God had no beginning (just as He will have no end); He has always existed, and He always will. (That's why He had no father or mother.) I know that's hard for us to understand, because everything we see around us had a beginning. Even the universe–the stars, the galaxies, even the atoms you can't see that make up everything in the world–all had a beginning. But God had no beginning. The Bible says, "The Lord is the everlasting God, the Creator of the ends of the earth" (Isaiah 40:28).
And God also never changes or grows old. Have you ever noticed how everything around you changes? People and animals change and grow old; trees grow up and die; even rocks eventually weather and disintegrate. But God never changes; as the Bible says, "I the Lord do not change" (Malachi 3:6). This is one reason why you can depend on Him, because He'll never change His mind or go back on His promises.
But the most important truth I can tell you about God is that He loves you, and He wants you to know Him and be His friend. How do I know this? I know it because God sent His only Son, Jesus Christ, into the world to show us His love. And right now Jesus wants to come into your life and make you part of His family forever. Ask Him to come into your heart today–and He will.