So guys, do anyone think I have little empathy. Like whenever people cry, instead of sympathizing with them I get really annoyed if they start crying for longer than 30 seconds(so I leave and let someone else take care of them). I didn't shed any tears for my grandparents funeral even though I was close to them, and I never really felt sad after too.

Sorry empathy is not the right word,just forgot what the word was

That's mean you are a strong person
I think it's okay as long as you don't hurt anyone

It can be as simple as Hando said, or it can be terribly serious. The fact that you even care to notice your lack of empathy is maybe a good sign, however.

"Not feeling anything" might also be your brain doing its job, trying to regulate your response to possible stressors. It might with time, though if the (lack of) feeling is persistent and visibly affecting your ability to function in society, you should consider looking into it a bit.

Oh, and the word you are searching for might be "apathy" ?

You're not apathetic, but you do lack empathy. You're not strong for it either though.
You're missing a key link with the emotions that are normal for people to feel. It is a serious issue, but one only you can settle yourself. You need to start connecting more, or some day you'll be the one crying and you'll know exactly how it feels to want someone to care as you couldn't bring yourself to.

I do talk to a lot of people, but I don't go to many of those emotional ride movies since some get pretty emotional and even cry even though it's a fake film.

Thanks for youre guys answers by the way