Need a technical cofounder

So I had a big problem when started my first business at 18. The problem was, my account didn’t give 2 fucks about me. Basically sometimes sends the invoices to pay and sometimes doesn’t which got me in big trouble, my accounts were frozen and the fines were so big. Also couldn’t get in touch with her, she wouldn’t answer my calls not texts. Since I know many business owners basically 70% of them had similar problem. I know there are a few companies that do similar stuff that I want to create but I am sure there are some changes which will make my company better. Also there is nothing like that in my country and I guarantee it will be attractive to the investors. How should I find technical cofounder?!