There are many books on the issue and teachers often come up with complicated formulas and doctrines on how to receive blessings from God. Look around for the fruit of these teachers and their teachings. You may find that many lives are lacking and some are even ship wrecked by their false doctrines. The Bible is the Word of God and is the Lord Jesus Christ’s promises and His Instructions to you to live in His promises. Without following the most Important Instructions you will fail in all you do.
Mark 12:30 And you shall love the LORD your God with all your heart, with all your soul, with all your mind, and with all your strength.
This is the first commandment and I believe the next most Important Instruction is in Matthew 6:33 "But seek first the kingdom of God and His righteousness and all these things shall be added to you."
Without these two commandments being obeyed, there is no relationship or fellowship to communicate with or hear from heaven!
Hebrews 11:6 But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him.
God created you to love Him and to seek Him with all your heart - all the time.
John 3:16 For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life.
If you will love Him with all your heart and seek Him first you will hear Him every time!
John 14:21 He who has My commandments and keeps them it is he who loves Me. And he who loves Me will be loved by My Father and I will love him and manifest Myself to him.
Matthew 6:24 No one can serve two masters for either he will hate the one and love the other, or else he will be loyal to the one and despise the other. You cannot serve God and mammon.
Revelations 2:4 Nevertheless I have this against you that you have left your first love.
1 John 2:15 Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him.
Matthew 7:7-8 Ask and it will be given to you; seek and you will find; knock, and it will be opened to you. For everyone who asks receives and he who seeks finds and to him who knocks it will be opened.
It's simple if you follow His instructions.