TRUST IN GOD! Even When You don't Understand Completely

It's easier to tell people to trust God, not to worry about tomorrow or the future than to actually do it when you have a huge amount of bills to pay. how can I trust my unseen tomorrow to a God that I don't even understand how He works HOW CAN I TRUST GOD? when I prayed and tastes but He didn't do it A message from God to His people Watch to be inspired!