If you give your life as a prayer, you intensify the prayer beyond all measure. To attain inner peace you must actually give your life, not just your possessions. When you at last give your life bringing into alignment your beliefs and the way you live, then, and only then, can you begin to find inner peace.
If we don't know in the depths of our being that God calls us "beloved," we need to. And if we do know it, and it hasn't set us on fire, then we don't know it well enough. Take time daily to be alone and silent before God. And an awareness of your utter belovedness will become a reality for you.