First of all, you need to loosen the screws that hold the earpieces of the glasses so as to move your earpieces. And put your glasses on a flat surface. Adjust the earpieces so as to make it fit for you. Then, tighten the screws that hold the earpieces of the glasses to the rest of the frame after you adjust the earpieces well. At last, clean your eyeglasses with a soft cloth and warm water to remove any fingerprints you may left on the lenses.
If the earpiece sit too close to your ears, you can bend the earpiece section of the temples outward. That is to say, you should bend the earpieces outtowards to make them a little away from your head. Before you begin to adjust the earpiece, you can place the glasses frame in the hot water to make them pliable. Then place the glasses frame on a flat table and use one hand to hold the front part of the frame. And put the other hand under the earpiece to bend the earpiece outward little by little. Then try on your glasses to see whether make your comfortable to wear.