Do you think it's difficult to do it yourself? I think it will be much more profitable than just trading.
Well, of course it's an interesting idea and it's not as hard to implement as you think, especially if you have the help of a good official launchpad, which will start your startup. At least in my lifetime I've seen several successful projects that are still going strong. I think you should try it.
I don't think it's worth doing it on your own. Try to look for some companies or crypto platforms that provide support for startups and crypto businesses.