My cup gets too deep

I start using a menstrual cup (from MyCup) a few months ago and I totally LOVE it! But I have one problem. Sometimes the cup gets in too deep what makes it hard to get it out. Its like when I want to take it out I can only get the end but with that I can't pull it out because its slips between my fingers and it won't break the seal. It happened like 3 times and after trying a lot I did manage to get it out. It doesn't hurt thankfully but I'm worried that I won't get it out one day. What should I do? Any tips?