"Originality" is not actually an inherent virtue; what most people actually mean when they say "originality" is a "my signature style". Well, everyone has that provided you're not specifically trying to sound like another composer.
Not that I am accusing OP of this — I have not heard his music — but it's my experience that a lot of the time, people try to use the fact that they're "original" and "different" to make up for the fact that they're not actually very good. Because then, you can make the argument that everyone who doesn't like it, simply "doesn't get it" or whatever. You see this a lot in "art music".
Schoenberg and his underlings were pretty original, what with the serialism and all. What do they have to show for it? A large body of work that is mostly ignored by the world and even fans of the technique admit can be "difficult to listen to".
A friend once told me about this conductor who told him what I think is probably one of the truest things I've ever heard about music: "The further that your music is from folk music, the less listenable, popular, and likeable it will be."
The reason that hits so hard in regards to this topic is that inevitably, truly "original" pieces must eschew the aesthetics and techniques that — over many centuries — have come to be the norm because they are what most people find to be desirable qualities in music. Like it or not: The list is finite.
You will notice that the most-enduring classical pieces are either highly-similar to folk music of the day (Bartok literally made arrangements of them) and 20th Century pop music. Throughout the 20th Century, basically everyone was granted access to art music via recordings and post-war economic booms and guess what? Almost all of that deeply-original "art music" that was written over the least few hundred years went the way of the dodo. Why? Mostly, because most people didn't like it. Why? Because — and I know this will make a lot of people made, but it's the truth — most of it was never actually very good to start with.
So
If people like what you're doing, you like what you're doing — then there is no need to be worried about how "original" you are.
But if you're getting bored with the classical style, just try doing another for a while. I've done everything from Metal to Pop, to Folk, to Romantic pieces to sad piano pieces.
It's only music — no need to make this $H!t stressful and complicated.