Menstrual cup dilemma

I recently bought a Lena cup for AF and TTC. I find it painful to insert the cup using all of the recommended folds. However I fold it, the edge of the cup is still too wide to put in. It is also difficult to hold the fold in position while trying to push it in. My hand slips and the cup expands before it is in the right position causing more pain. I have to walk like a duck for a few minutes 😂 until it takes the right position inside. What am I doing wrong? I have never delivered a baby. I want to keep using the cup but I worry that it might be hurting my insides and preventing me from getting pregnant? Help!