Dont do it. Research will tell you that. And dont listen to friends. I was in a similar boat as you when i was 18. i weighed 153lbs and was 6’2". I played high school basketball. After i graduated grade 12 i lifted weights seriously for a solid year. In that time i gained 53 lbs. I went up to 206lbs in 1 year NATURALLY !!! Even the owner of the gym couldnt believe my progress. I could have done a cycle back then to. I seriously considered it. Any ways i didnt do it. I was too scared and I am so glad i waited. Best decision i ever made. Wait until you get older. Thats my advice…