Sarcasm is truth wearing sunglasses. Take them off sometime and say what you mean.

Sarcasm lets you say the real thing while keeping the option of not having meant it. That escape hatch is the whole appeal, and it is also the cost, because the other person cannot respond to something you have not quite said. Used constantly, it stops being a tool and becomes a wall. People know roughly where you stand and never exactly.

Notice one thing you have been saying sideways for a while. Say it straight once, to the person it concerns, in the flattest words you can manage. Keep the sarcasm for jokes, where it is genuinely good, and off the things that matter.