Whenever I get into an online communication it makes me so mad because I can never tell what anyone is thinking.
Why do you think you can't tell what they think?
It seems like there are so many lies in the internet
It really can be hard to know what they really mean online. You may want to stick to in person conversations whenever possible then.
Nah, I'm suicidal anyway and people can just  deal with it.
If you're feeling suicidal then you should see a therapist. Outside of that, you need to meet up with people in person if you really want to know how they feel-- that, or do a video or voice call online.