Many folks have a wrong perception about God and so they find it hard serving or walking with Him. Their wrong perception and approach to God always hinder the good things they could receive from God.
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Such folks pray with the mindset that God must be persuaded before He will give out anything. To them God must be appeased or pacified before He will be willing grant us their request or forgive their sins.
They go to God in prayer with tears, prostrating themselves in some way to show humility and then beg God consistently to grant them their request.
Having right attitude like humility is good in prayer but begging for the things we need or want is something God does not expect us do. God is more than willing to give us anything we ask for. He does not expect us to come begging for we are not like servants or slaves but His sons.
Just as a son doesn't beg a father for anything but ask boldly, so as God expect us to ask and not beg. He can supply all our needs according to His riches and He is able to do so exceedingly and abundantly above all that we can ask or think of.
Jesus when teaching His disciples how to pray told them to always ask boldly knowing that God is willing to give them what they ask for:
Ask, and it shall be given you; seek, and you shall find; knock, and it shall be opened unto you: For every one that asks receives; and he that seeks finds; and to him that knocks it shall be opened. Or what man is there of you, whom if his son ask bread, will he give him a stone? Or if he ask a fish, will he give him a serpent? If you then, being evil, know how to give good gifts unto your children, how much more shall your Father who is in heaven give good things to them that ask him? Matthew 7:7-10
Comparing us to God himself, Jesus made us aware that if we being evil know how to give good gifts to our children, how much more wil God not give good things to us when we ask.
Christians do not have to beg from a God who is willing to give. They must go to God as children go to their father, confident that he will not disappoint them or give them less than they ask.