I have a ton of friends and the are so funny, and they constantly crack entitlement, funny jokes. but what makes me sad is that I can't offer anything to a funny topic...I'm like just stuck; dead in the water. It's not like they are expecting me to contribute humor to a topic, but it would be nice to be able to. I can't make people laugh no matter if I try or not. I always get strange looks when I try to be funny, and I lose people's interest when I don't try to be funny. Is this normal to not be able to make people laugh? I learned that humor is something you can't learn to be and that its something we're born with; either you have it or you don't. How come I have to be the boring one? Am I doomed forever? Being funny plays such a massive role on EVERYTHING - from finding a significant other to scoring a promising career. No one likes boring, unfunny people and im sick of being that guy.

What do you get if you cross a penis, with a potato?
A Dictator.
I don't care that my husband is unfunny either, it's never been the slightest issue, so really, don't stress it!! Funny people know they're funny and usually like to MAKE people laugh more than compete with other jokesters all the time. The only issue I ever have with his poor sense of humor is that, unlike you, he still hasn't realized he's NOT funny so he still tries and it gets annoying sometimes. Mostly because he'll make what he thinks is a joke, no one laughs, so instead of realizing the joke bombed he just repeats it until someone says 'we heard you the first time, it's not funny'. Then he gets butt-hurt. I wish he'd just quit!!
I've always wanted to know more about where the sense of humor comes from, it's a curious topic!! I wonder how people can recognize things as funny when other people/TV/movies are being funny but have no clue how to make a joke?? Then there's people who have NO sense of humor at all and can't even laugh at other people, let alone ever attempt a joke themselves.
I don't know if I can really offer you much help on improving, the best thing I can think of is to observe a whole lot and see if you can zero in on who laughs at what and why, so you can try to make more appropriate jokes. Different types of people laugh at different types of jokes in different situations-maybe you are a poor judge of your audience. There's different ways to be funny, too. You can be more physical, some people are hilariously self-deprecating, some people make funny observations, some have funny and very animated voices and body language, there's topical humor, and so on. Maybe you're trying to force yourself to be too funny in too many ways that don't suit you personally. Watch comedians and see how they're all different and what it is that makes them funny individually, it's more than JUST the jokes, it's also in the execution. Try to find something in your personality or mannerisms that are similar to a comedian and try to play that trait up.
I don't think you're born funny, but you may be born with an interest in funny, and then your experience shapes this into a skill of your own. Which is to say, don't give up; instead, watch more comedy. Of all types. You might avoid Shakespeare's comedies but silent films to the present day, certainly.
There are only so many ways of constructing a joke. And then there are ways of telling it so even the unfunny sounds funny, i.e. Buster Keaton in "The Goat". It's silent so is purely about joke construction, and it's damn near flawless. Contrast with Joe Pesci's story-telling in the restaurant in Goodfellas when he gets called a funny guy. The story he's telling isn't funny at all. There's barely a joke in it, but his delivery is a thing to behold. He really is a funny guy!
Example: My boyfriend, his family, and I went to Olive Garden. We had a cute waiter, and my BFs mom kept talking about him when he was away and tried flirting with him whilst ordering alcohol. We all started making fun of her and my boyfriend kept doing an impersonation of rubber johnny it was hilarious.
Now if he had never watched rubber johnny he would have never been able to make that joke.
;))