Are you just being glib or is this really what you believe as a fundamental?
Truth is entirely subjective?
Good is entirely subjective?
Perhaps in the sense that what any individual will regard as beautiful, beauty is subjective, but what is meant by beauty, as opposed to ugliness, is that also subjective?
If everything is subjective, how can anything have any meaning? How can any two people ever talk about what is good, if good is just some subjective thing. There would be no way for us to know if your subjective good meant the same thing as my subjective good, or even if what we meant by good was related, would there.
Now I suspect your statement is sort-of, "off the cuff," and implies more than stated. If that's the case, perhaps you'd like to expand on that thought.