Anyone could assure they are "profitable" just by saying it. It's still better to show an actual outcome first before asking for money for investing. Imagine you're in Shark Tank, the presenters there already have at least a small output or outcome with their business.

Maybe invest your own money first and make it profitable then post an actual business proposal and then there could be investors with that.

What will you give to the investors in exchange for there investment. As far as I see this, You are planning to build a software for trading. I mean you should indicate also how you can assure that you will paying back investors and when you plan to do it. You should have a time frame for your product development and also finishing the project whitepaper will give us a brighter picture about the product you want us to invest in.

I recommend that you should create utility token for your project so that you can launch ICO(Initial coin offering) so that you will follow the right way to do crowd funding. I'm sure you will investors if you have a unique product with real use case.

Hello fatemeh.

Although most angel investors know that the investment will cover the expenses of the startup and company that they will invest. But I think, it's an odd introduction to tell that.

And before telling it, you should have introduced what you're working with properly.