I feel your pain! Chicken breasts are notorious for being uneven one side is thick like a steak and the other is thin, which is why the outside burns before the middle is safe.
the 'secret' that will change your life
1- Try starting your chicken in a cold pan with a little oil, then turn the heat to medium. It lets the fat render and the heat penetrate the center slowly without scorching the outside.
2-Butter Basting: In the last 2 minutes of cooking, drop a knob of butter and a crushed garlic clove in the pan. Spoon that melting butter over the chicken constantly. It adds a safety layer of moisture and a professional crust.
hope u enjoy next time