What is right/wrong?

Alright... So we have been on this earth for quit awhile (so they say). I have been here for about 21 years, my mom for 45, grandma for 70...
Since ive got here (well, since I have realised it anyway) I saw things are pretty fucked up.

I sometimes talk to people and I have come to notice that everyone has alot of judgments on others and critique. Some examples:

- They are stupid
- That person is ugly
- That person has an anoying voice

You might think those judgments are pretty harmless, but are they realy?

An example:
Girl1 calls girl2 stupid for something the person is saying. But actually girl 2 is just interpreting things in her own way. Girl1 thinks that she knows and that the way girl2 is saying it, it so wrong and therefor she sais Girl2 is stupid. By doing that, Girl1 shows that she thinks her expression and experiences are supperior to that of Girl2. She thinks she is more "advanced" or something like that. Why else would she call Girl2 stupid?

The same thing is going on in the world. People hear all those different kind of stuff and all think they know whats going on. Same here.
Some say: global warming isnt caused by men, some say it is etc...
Whos right whos wrong? I have no clue! You know.. the ones thinking global warming is false base this on scientific evidence. Who sais they havent made a mistake? Who sais they are true and dont have secret agendas? etc... And the ones believing that global warming aint real. What do you know? Maybe it is caused by men and you just cant see the connection?
There is so much, sooooo much we cant know.
So then they all fight over the fact who is wrong and who is right and what we should or should not do....

To be honest, I have no clue anymore. I feel like an empty space, not knowing anything and constantly questioning.

So this is not about having critique, I am just questioning, trying to figure it all out. But how can I do this, in a world of lies?

What do we realy know?

So Ive been thinking lately about the world and myself in general. It left me in quit a confused state, actually, it kept me in quit a confused state.
There is very little we know for sure.
Like we hear things on television and news every day, but are they honest? Do they just show us the things wich will influence us in some way? How can we know the info is true/is real ?
Well...we cant from sitting in our seat reading it. The only thing you can do to see, is to go and look for yourself. Now... abit hard to do actually.
But anyway, knowing that we cant know it for sure, we cannot judge it. Because if we do we might be judging something wich is wrong.

Also, when we go to the docter we expect him to know whats best for us. But does he realy? I mean yeah he studied for it but he did not invent the material wich he needs to study. Someone did that some time ago and some people are still doing this and integrating it into the school systems. But... how do we know they are honest and have no secret agenda? We dont! We cant know that for sure. So trusting the docter is just believing it, a believe system.

Now you can say: yeah but the docter cured me couple of times. Well... I have been sick to and cured without medicine. Does that mean that this goes for everyone ? No, just for me. Maybe ill once get sick, dont take medicine and die, who knows... all is possible in this crazy shit world.
And maybe we get sick because of other things, not bacteria etc... but maybe mental stuff, things of the mind? Could be, we cant know that. You can say: sure we can they investigated it. Yeah but can you trust those who investigate? No, you believe you can trust them, its just another believe. You believe the formulas and the tests and all the scientific info.

When I come to think of it, its all about believing.
You can realy use this methode of thinking about all kinds of subjects. You will find out that alot of things you do, are because you believe in it or trust it. It hasnt got much to do with anything else.