Your eyelash curler cut the middle of your eyelashes what can you do?

First, throw away the eyelash curler.
Then go to the doctor and ask for Latisse, it is a pharmaceutical strength drug used to increase lash durability and length within a short period of time.
In the meanwhile i would not use any mascara it will make the problem very obvious, i would apply eyeliner on the top lids for a lash-look approach.