One of the many blessings that come from having such a great, loving Father in God is the assurance that we can petition God through prayer at any time. God wants to be invited in to help us whenever possible! God doesn't want us to struggle or feel alone; God loves us.
Matthew 7:7-8 tells us how giving God truly is:
"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 the one who seeks, finds; and to the one who knocks, the door will be opened."
The key to all of this lies in your decision to seek it out. Your teacher cannot help you if you don't ask for help. Your parent won't know what is bothering you unless you share it with them. In a very similar way, God is not able to help us unless we invite and ask for help. Boldly ask, confident in God's follow-through. If we knock, the door will open.