Isfandiyar Shaheen a couple of quick questions that can help us figure out how to best help you.
a) Who is the problem statement meant for? Who is the target audience?
b) What should the problem statement achieve? Get people interested, get them to write a check? Get them to do what?
c) What will you do with the problem statement? Given the amount of time you have spent in this space, what is it that we, your audience have, that you don’t?