Matthew 6:30-34 Now if God so clothes the grass of the field, which is alive today, and tomorrow is thrown into the furnace, will He not much more clothe you? O you of little faith! Do not worry then, saying, "What shall we eat?" or, "What shall we drink?" or, "What shall we wear?" For after all these things do the Gentiles seek. For your heavenly Father knows that you need all these things. But seek first the Kingdom of God and His righteousness, and all these things shall be added unto you. Therefore do not worry about tomorrow; for tomorrow will worry about itself. Sufficient for the day is its own trouble.
In Biblical Hebrew, the verb tenses are not like our "past", "present", and "future" – there are only two: "perfect" and "imperfect". The "imperfect" tense is that which is not yet, not done, or not completed. The "perfect" is that which is done, complete, and finished.
The Bible speaks of things that are yet to come in the perfect tense as if they are already completed; (also called the "prophetic past"). God can have a finished work that hasn’t happened yet -- for example, our salvation! In Messiah, we are a finished work that hasn't happened yet. We are becoming what we are already, in Him.
Yeshua (Jesus) instructed us to pray, "on earth as it is in heaven." Since we (believers) are born from above -- from the finished, perfect work of God, we are already participating in His perfection, though we are still on earth doing His will.
So, reflect on this truth of your already complete perfection in Yeshua. You will look at your problems a little differently -- actually be less worried about them from this "Heavenly" point of view. You may still be working them out with fear and trembling, yet rest in this simple and amazing fact: in Yeshua, they are already resolved!