Should I tell my parents?

I am 16 years old. I got caught up in a bad group of friends. I did things I don't approve of. I even got close to having sex, 4 times. I am still a virgin and I am proud of that. I use to drink, and I took pills a couple times. I am clean now and have been for 5 months.I still hate everything I have done. I regret it. I am already grounded for one bad mistake for getting suspended for a semester. I no longer have much freedom, and that's all I want is trust and freedom. Should I come out and tell my parents the truth?