"I've been here before a few times.."

I just began to think about the saying "If you love someone you let them go" Wtf is up with that? I mean I get it, but its already hard as it is to let someone you love go. And you let them go in order for them to find happiness right? But in the end that kinda sucks for you....sitting there seeing them happy.........without you......,excuse me if I sound kinda selfish, but that sucks so bad. But then you realize that maybe they werent the best for you, so maybe it doesnt suck as bad.... but then theres all these different other sayings about life being what you make it, and leaving things up to fate. If shit happens it happens....I've begun to live life that way....let life happen the way its supposed to be, and leaving it up to fate, but fate is what will end up happening after you choose to do something. And now a days theres all this talk about "the secret" it's the laws of attraction, "keep your eyes on the prize" basically if you want something and you stay focused on it, you will achieve it one day. These are all different ways I live my life and having said all that I've realized that these are all different insights people have given to others to be successful in life, but in life everything is different with each individual some things work some things don't. So how do I really live my life? There are people that believe in living life the way you want to...but if everyone did that....there would be some corrupt people in the world. So i'm stuck at the point where I don't know how to deal with life, or where to go, and I don't think someone else can tell me how to deal with it cause their life isnt my own...... so am I really making mistakes.... or am i just falling out of this image of how I'm expected to be cause of years and years of people trying to be what we know as "good" So am I just expressing my individuality or am I really just making mistakes.... and if we're not all perfect...then how can someone else tell me I'm making mistakes.....When I just want to be an individual.... not a follower or a machine that does everything exactly the way they are told..... If I do that...then whats the true meaning of life if everyone in the next generations to come just live by this image. Where does that leave us? How do we all advance if we all try to live life exactly the same....