how to know what’d wrong with me,?

It would be better to consult a doctor or a therapist to get a proper diagnose. Only then you'll know for sure if there is or isn't something going on.

In really depends on what we're talking about here. If you think you have some kind of mental illness that remain undiagnosed, you should definitely talk to a professional.

If you're saying that you feel like there's something in the way you act or think that you'd like to change, you can do that on your own. Message me and we can talk about it if you want.

Oh okay. I can't, but thanks though.

Haha well this is a relatively easy thing to determine. Think about what you say and do, and then see how people react. There are few people that can decipher more about you than yourself.