"Now when Jesus had entered Capernaum, a centurion came to Him, pleading with Him, saying 'Lord my servant is lying at home paralyzed, dreadfully tormented.' And Jesus said to him, 'I will come and heal him.' The centurion answered and said, 'Lord, I am not worthy that You should come under my roof. But only speak a word, and my servant will be healed. For I also am a man under authority, having soldiers under me. And I say to this one, 'Go,' and he goes; and to another, 'Come,' and he comes; and to my servant, 'Do this,' and he does it.' When Jesus heard it, he marveled, and said to those who followed, 'Assuredly, I say to you, I have not found such great faith, not even in Israel!" -Matt. 8:5-8 NKJV
How amazing is that? Can you imagine God saying that you have more faith than anybody else, including His own followers? That's a huuuuuge compliment! So why did this guy have more faith than anybody else? He was humble. He had faith that Jesus was who He said He was and that He had the power to speak a word and change the world.
So have faith! Never doubt God. He can do anything and He is VERY interested in your problems, no matter how small or how big they may be. Like it says in the chapter before,
'Ask, and it will be given to you; seek, and you will find; knock, and the door will be opened to you. For everyone who asks receives, and everyone who seeks finds, and to him who knocks it will be opened.' (Matt. 7:7-8 NKJV)
It's as simple as that. Pray and ask God to help you through your problems. Have faith that He will take care of you and He will! Sure things may not change for a while, but it may be immediate too. Remember, we are on God's clock, not the other way around. So have faith, believe, and victory over your difficulties will not be withheld from you!