Phase 1, how da F?

How do you leave it all behind and take ur own course in life? 
I’m coming from a hard working family. Both my grandma and grandpa from my mom’s side were school teachers. My grand parents from dad’s were village workers. All my childhood and actually till my mid 20, I’ve been tough to acknowledge and care of what people would say or think about me or my deeds. My mom would generally tell me what’s best and I had to accept, I mean had as Ive never had the chance to make my own (silly) decision. Years have passed and today I’m 33, having a constant dilemmas or argues of what people would think, yet I wanna be free of that. How do I do that? Where’s that I don’t give a fuck medicine I wanna take?