Is it normal that intelligence is alienating

There was an episode of the simpsons in which lisa showed Homer the relationship between happiness and intelligence. She illustrated that "As intelligence increases, happiness decreases"

There is a saying that goes "Think before you speak". This often leads to not even speaking at all. Im constantly observing things and thinking about random processes. When i speak i carefully rearrange my words so as to make it as concise as possible. When people talk i often find myself questioning what their point is.

For example, picture the typical mom who brags about her sons academic achievement. Instead of a happy, cheerful response- i often think to myself "it is in your nature to blindly believe with a bias that this selfish copy/replica of yourself in the form of offspring, that is it the center of the universe"

My response should be a gleeful one- but it is not. I find myself wondering why i have, or rather, what is considered to be at least, cynical thoughts about random daily events situations which normal people would be happy about.

I would rather spend my lunch parked under a tree reading a book on evolutionary biology- and continuously think about what i've read most of the day, than go to lunch and "socialize" with my fellow co workers- who are annoyingly cheerful/bubbly and easily impressed by the most benign things. Im a female by the way and many customers blatantly point out when i dont blend in with the group

So i ask of you of this is normal. Ive genuinely considered ending my life since i am not happy. I want to experience things and enjoy things but theres this critical analytical voice/thoughts that hold me back. How do i end this cycle do i pretend to ignore who i really am and always have been or continue to be a secluded intellect.