Week 3 Vocab Sentences

I need to focus more in class due to the report card i got which was all F's. It's hard, but i know i can do it cause i have great potential in myself. I just need to find the appropriate friends to be hanging with too. Most of my friends are into doing the harsher drugs which i never liked. I always consist to them that it's very bad and it affect their health, and their performance in class.