And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight.
1 John 3:22 KJV
The equation of being blessed is tied to the sacrifice of remaining in the right place with the giver of blessings.
John reminds us that to receive from and of God requires our obedience, our obedience to HIS commandments; not to be overly misunderstood with a life rid of malfunctions but one with the willingness and ardent die-hard attitude to live in the patterns of HIS commandments.
Commandments include the oral and written precepts; there must be a balance. Once this is done or being done, ask. Ask anything, a blank cheque from which we would receive bountifully.
So, the catch is: obey HIS Word, and do that which gives HIM Joy and pleasure. Make HIM a happy FATHER and HE will shock you with all you ask of HIM.