When I was trying to insert it, only the tip would go in smoothly. I started like twisting it and moving it around and stuff but it won't budge. I'm pretty positive I'm doing it right, I'm holding it correctly, pointing towards the small of my back, etc, but it just won't go in. I tried it a second time by putting the tip in first and then going faster than last time but it started to hurt. I tried calming myself down cause I heard that you can unwillingly be clenching inside but it still won't go in. I don't know what to do, any tips?