Toddler gives hard time at meal times

My 2 year old give me a hard time eating. He has been like this since he was born. His sleep is bad too. I haven't slept in 2 years.

There are occasional phases when he eats better.

I just don't know what to do. No matter how hard I try he'll eat a few bites and than he is done

I don't offer him snacks at meal time. I have read alot on Internet about and it and tried but in vain.

It just flips my brain and than he just keeps moaning cause probably he is hungry. The only thing he likes is carrot.

I really don't know what to do. I'm just loosing my patience