Is it normal to be this depressed about being stupid?

You say you feel stupid and that you look at everyone else and see that they are more intelligent than you. Don't compare yourself to everyone else. Do things to make yourself happy. Learn new things to challenge YOURSELF not to please/impress other people. Be proud and pleased of the accomplishments that challenged you.

The fact is there is always someone out there who is better, faster, stronger. I like martial arts, boxing, fencing. I know that there are people out there that will make me look like a dopey amateur. But is that a reason for me to quit? No, I'll continue to learn and grow at a pace relevent to me, accomplish little challenges that will please me.

Set yourself your own goals no matter how little and keep at it. Don't compare yourself with others .. only with yourself. Make yourself better, faster, stronger than YOU are.

Thoughts are things that come into people's brains naturally. If you think that your thoughts are inferior, it's still not your doing. It's pointless feeling bad about it as much as it's pointless feeling good about it.

When you see a smartass thinking too much of himself/herself, just think to yourself that they are stupid for thinking highly of and boasting about things that come to them naturally and through pure luck

So you may not be 'book-smart' but you seem to have a higher emotional intelligence than most. That's not a bad thing at all. You are most certainly not any sort of mentally challenged. Maybe you just have a learning disability is all. You sound fairly young, you could go get a diagnosis from a psychiatrist.
But please remember you're not stupid. And having a high emotional intelligence is something to be proud of and is just as important as being 'super smart'. You can do something most of us can't do well at all. You can describe with accuracy how you feel and you understand it.

You can't be that stupid. For one thing, you can structure a sentence, which is more than can be said for most inhabitants of the internet, and you can explain your feelings.

I think that intelligence isn't the most important thing. It isn't a prerequisite to being happy.

Everyone has their strengths. Some people have the strength of knowledge, some people have the strength of being emotionally intelligent, some people are determined, some people are confident, charismatic, friendly, attractive... the list goes on. There are lots of things worth being good at; being smart is only one of them. I'm sure that even if you're not smart then you are good at a lot of other things, and that smart people envy you as much as you envy them.

Also, what DaemonWolf said. If comparing yourself to other people gives you a negative opinion of yourself, try not too compare yourself to others as much as you can.

If you're smart enough to know you're not smart, then that kindof makes you smart.. "Every man who knows a thing, knows he doesn't know damn a thing at all." Also, your spelling and punctuation is wonderful. I think you are just taking yourself for granted. Remember, there are many different types of smart. There's academic, which may not be what you are, and then theres a bunch of others that I don't know lol But it's like maybe someone sucks at math, but is a great mechanic, so in a way the mechanic is smarter than themat wizz. See what I mean? I'm sure you're much smarter than you think

you're depressed.

I'm stupid too ...i'm depressed too...i want die too :-( it is normal...

Captain_Kegstand?