Question Reduce Impact of Lights on Shader

So I have this shader that I use in an overall bright environment built with shader graph. Nothing fancy, basically a Texture and a Cubemap. In my Game Environment these elements turn out really bright (clear white at times) while the rest of the lit scene is just fine.
Can I reduce the impact of Light onto my shader, so that It doesn't get as bright, or - even better, reduce the overall contrast of the output?
Thanks.

Current SetUp: