I'm actually not sure if you are trolling or if you really think that low of yourself. If you think you suck at something, well guess what: you're gonna suck at it.
I too realized once that hey... i'm not as good at poker as I thought I were. I too felt like I wasnt good at anything (but I actually was, just not poker or like a billion other things - but there was plenty of things I was good at, you just see past that in that state of mind). It can be quite an overwhelming feeling.
I felt hopeless, that I'd have to play poker for fun, or for a slight bit of extra money. I was pretty damn sure I'd never make it in the pokerworld. I had given up the hopes of becoming a pokerpro. But guess what. That's what I am now. I may not be even of average skill compared to all the other pros out there, or make even close to average, but I earn enough money for a decent living - and the dream I had about playing poker and going to a pokerhouse in a far away country in a baller house - well, that's happening in exactly 30 days.
Nobody is lying when they say poker requires hard hard work. But I don't think all tell the whole truth either. It's not that poker is supercomplex, and that to reach NL200 you need to be some wizkid. The hard work is actually being your own boss. The hard work is, being able to push yourself even at times when you don't feel like it, the hard work comes with trying to change the behaviour that used to be normal to you - but doesnt quite fit for a good pokerplayer. The hard work comes with changing the way you think, the way you react. This is especially hard for emotional and lazy people - like me.
I'm not lying when I say getting to where I am required some hard work. It did. It does require hours and hours of playing, analyzing and learning. But that's not the most challenging nor the toughest part of poker. The biggest challenge is to get yourself to do it. The toughest part is being your own boss, the boss that you most of the time hate.
Fwiw I don't think everyone has it in them to become good at poker. Actually, thinking about it, I do think everyone does. Some just don't want to push through, and do things neccessary for success. Some people give up at first sign of struggle. Some people like to sit around thining they suck at everything, instead of getting their act together and make sure they become good at something. Some people simply do not have the mentality to get to where they need to be - but everyone has it in them. It's there, if they just want it to be.
Keep working, keep dreaming, and keep playing 
that's probably not any better than a normal job (even worse), but it's valid why not]