Glass Dildo

So I recently got an IUD for the first time. I’m 17 and have not gave birth. But thats besides the fact. My order came in from Adam and eve and it was a glass dildo I’m so excited to try. I decided to try it 24 hours after I got my IUD inserted because the doctor said no intercourse for another 24 hours. I tried it and it was not my favorite...it was heavy glass and it didn’t hit my g spot like I thought it would, it kinda hurts actually. Any advice with a glass dildo?