You are a possessor of an inheritance; You are not trying to obtain. All you need to do is
drop the normal natural earthly way of thinking, and recondition your mind to accept this truth, because the two cannot go together, you must choose to think this way.
The Bible says in
Romans 12:2 KJVA
And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect will of God.