Ask and it shall be given you, seek and you shall find, knock and it shall be opened unto you. Matthew 7:7
Life point:
Jesus said we should be persistent, but not repetitious in prayer. Keep pressing on and do not give up, and keep expressing your faith and gratitude to God for answering you.

It is difficult to lay down strict rules on the subject of how often to pray about the same situation . I have heard some people say pray repeatedly until you see the breakthrough , I have heard others say if you pray more than once for something, then you do not believe you got it the first time.
I don’t believe we can make any strict rules, but I do think there are some guidelines we can apply that will help us have more confidence in the power of prayer.
If my children told me their shoes were worn out and asked me to get them some new ones , I would probably respond okay I will get them as soon as I can.
What I would want from my children is trust. I would want them to trust me to do what they asked me to do. I would not mind, and might even like it, they occasionally said , Dad I am sure looking forward to those new shoes or I am excited about my new shoes, Dad I will be glad when I get them and can wear them. Both of those statements would declare to me that they believed that I would do as I promised. They would actually be reminding me of my promise, but on a way that would not question my integrity.
On the other hand if they come back to me an hour later and made the same request again, I might be irritated. If they said Dad my shoes are worn out and I am asking you to get me some new ones, I would think, I heard you the first time, and I told you I would get them as soon as I can. What is your problem.
I believe that, sometimes asking God for the same thing repeatedly is a sign of doubt and unbelief, not of faith and persistence.
When I ask the Lord for something that thing comes to my mind again later , I talk to Him about it again, but when I do I try to refrain from asking Him the same thing as if I think He did not hear me the first time. I believe we honor God when we demonstrate faith and persistence by thanking Him for hearing and answering us.
Hallelujah to the Lamb of God.
Prayer:
O Lord increase my faith to pray persistently in Jesus name.