That's possible, you're just 17 years old. Don't be disheartened,we are here to help you. You need a proper dietics chart and nutritional supplementation in a natural way with adequate muscle group stretch exercise.
Next Steps
Abstain from Gyming for now.
Stretch exercise (whole body, segmental,spinal would help)
Improve dietetics and most importantly have a proper sleep as that's very crucial for Growth Hormone release.