Is it possible that it is true that: "That which is rightfully yours can never be held or kept away from you against your will!" be accurate?  Because if it is, then all you (or I) need to do is: 1) access the safe place in Mind where that which is rightfully ours awaits, and 2) have it be our will to allow it to be.
#2 is tricky because the true power of our original-will can change everything since that power is what operates this world and currently keeps us from remembering, as if we would be afraid to see that it is us that did all this!
Don't be afraid to call upon that which is yours in Truth today. It's waiting to be chosen as what you really want! It can wait. It will wait. On you.