My dear young brother,
God wants to walk through your life with you and within you. He is not against you. He is for you. He wants to help you be the best that you can be.
You will be tested, but the tests are not the pass or fail kind like in school. They will be life tests that require you to make decisions. Some decisions will need to be made in the blink of an eye, while others will allow for and take more time.
If you let God in. Into you heart and mind. He will help to guide you.
Search me, O God, and know my heart; test me and know my thoughts. Point out anything in me that offends you, and lead me along the path of everlasting life.
New Living Translation