Prayer is one of the main keys of Christianity. A Christian is anyone who prays hard and believes in God but it isn’t sufficient just to pray if truly you want to get closer to God. 
It is not sufficient to only pray to God to receive us. When or after we pray, we should work towards doing all the things that God has commanded us to do. 

Even if you pray all day and all night, and you do not try to follow the ways of God, it means that you are as stagnant as a water. That means or shows that you are not moving forward at all. 

Matthew 7:7 says; *Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you:*

When talking about the door you should knock, the door you should knock on is your attitude. Your belief. The things that you do which has been ordained by God before. 

https://youtu.be/bq2ahaB-Q6s?si=Iw3XJv9ASkPvqoaB

Another important aspect of this is believing so much in God. A Christian who wants to get close to God will definitely believe in God. That when you pray, you will not have any form of littlest doubt in your prayers. 

When you pray, pray in faith. When you talk, say the words of God. Say the things that God wants us to say. Do the things that God wants us to do. 
You should not read the Bible alone. Act it out. Do what the Bible says. 

When reading the Bible, it portrays the life of Jesus Christ and every Christian is also expected to do just that.