We will be disappointed with God if we view our relationship with him in transactional terms.
We renounced our worldly ways and became a reborn believer. We live more righteously than most. Our theology is doctrinally sound. We tithe regularly.
God should therefore reward us with personal success, safety, and satisfaction. At the very least, he should minimize our suffering.
This sense of entitlement is unjustified.
Through the death of Jesus, God paid the ultimate price, so we could enjoy eternity with him in heaven. We appropriate this benefit by simply confessing our sinfulness to him and asking Jesus to be our personal Savior.
Expecting God to make life easy, because we bothered to accept his free gift of salvation and now—by his grace—live somewhat righteously, evidences a selfish perspective that emanates from an incorrect view of him and us.
We cannot barter with God, because we have nothing he needs to trade for his blessings. We cannot entice him with a promise of obedience, because he knows that we are inherently unrighteous.
All we can do is ask God to bless us in accordance with his will and trust that his sovereign response to our request will ultimately produce the outcome he deems best, an appraisal we can trust.