As said in the comments, MO explicitly discourages people to ask for proof checks. However, there are a few things you can do. 

First of all, you can post your work on ArXiv, or ResearchGate. In this way you make it clear that you authored that piece of work, while letting it having some visibility. You can then ask some expert in the field to look at your online paper (although it may not be easy to find someone who really checks it).

In addition, you can search for math blogs in your area. That could be a better place to ask for this kind of help than MO. 

Finally, let me quickly address your opinion on the attractiveness of the result. You could be 100% right, but perhaps you should also be prepared to some degree of delusion. Unless you’re claiming to solve a well known open problem, it is possible that you are not in the best position to judge the relative importance of your result. In most cases, the main issue with contributions by people somewhat disconnected from the math community concern this point.

Good luck!