Culture has created a belief that as a teenager you can love Jesus and not act like it. Following Jesus changes everything about life, and true spirituality makes us weird to the world. We stand out from our peers. We lose friends. We have crucified coolness and we will never be popular. We have to understand as teenagers is that being a follower of Christ is not something you get to turn off everyday and only turn back on a Sunday , it's an everyday thing, it's a lifestyle; a commitment. To daily take up a cross means requires a selfless life of service. Following Jesus requires living each day as He lived, giving into God every day, offering a daily sacrifice to do His will. This does not imply a life of poverty and problems. It doesn't mean that dreams cannot come true, or that one will be left alone and abandoned. God promises health and prosperity, and has adventures in store for those who commit their hearts and lives to Him. You can't serve two masters at the same time, you can't serve the flesh and God at the same time it doesn't work like that. The culture we a growing up in wants us to believe that it's okay to satisfy your flesh and still be in the right standing with God but that's not true. The bible instructs us on how we are supposed to live as sons and daughters of The Most High.
If you have fallen short of the mark and sinned it's not too late to turn to God in fact Luke 5:32 says l have not come to get those who think they are right with God to follow me. l have come to get sinners to turn away from their sins. Jesus came just for you and me and no matter how deep your sin is His grace is deeper so don't let the enemy lie to you that you can't be saved because the King of Kings came from Heaven so that He can save you