I think simonankor is right. Relax! If possible, steady yourself against a wall, doorway, tree or something. Your right hand should enclose the right end of the camera with your index finger on the shutter button. Your left hand should cradle the camera with your thumb and index finger on the focusing ring. Keep your elbows against your sides and the camera against your face. Squeeze off the shutter, don't jam it down.
Oh, the other thing is, don't get old! I used to be able to get acceptable photos at 1/15th all the time, now it's hard. We tend to get more unsteady as we age. A glass of wine helps! 🙄