Freedom is a complex game. For example a person who has to work everyday following the same routine can be said to be trapped. An unemployed who has all the time in the world is trapped in the notion that job will give him the freedom he is aspiring for.
Same way a person who is around many people can sense truest freedom. And, a person who is all alone can be bounded and trapped in his thoughts crippling his true experience to freedom. This is my philosophical take on the subject of freedom. This is just to express what I think and I do not intend to undermine your sense of freedom.
I am happy that you are happy and free. Peace.
RE: Achieving true happiness. Is it possible? 100% yes.