God asks us to be persistent in prayer.

Why do all our prayers not get answered the first time that we pray them? We do not really know, but we know that God our heavenly Father knows best and He is all powerful and all loving. In the Bible it tells a story about a widow who comes before a judge, and the judge hears her because she keeps coming back to him.

God loves you and He knows what is best for you. He sent His Son Jesus Christ to die for you. Jesus said "Ask and you will receive; seek and you will find; knock and the door will be opened to you." A better translation might be "Keep on asking and you will receive; keep on seeking and you will find; keep on knocking and the door will be opened to you." You can bring your requests to God every day and He will not mind. But ask in faith and trust that God loves you and He will provide what is best.