if you had to choose between living in gods good grace or partying like a rock star what would you choose?

i have chosen the lord jesus as my savior and now my party peeps think im crazy.at first they were cool about it, but now, they just try to tempt me to go back to my old ways and party it up! i guess they are still blinded by their evil ways, but it gets worse, i know that by becoming a follower of christ, i must delete all negativity from my life. so does that mean i cant befriend them anymore...even if they have been my besties for yrs., & yrs.????