Girls- Why does the corner of my lashes fall off with the glue?

each time I put on lashes with glue the inner corners always lift up. The glue does hold the whole lash except for the inner corner so when I step out to the store my eye lash corners are already lifted. How do I stop this? I always add extra glue to the corners. Do you need a super expensive lash glue to stop this?

Girls- Why does the corner of my lashes fall off with the glue?
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