Hi Robert
I don't know if I can help you. But if you want to chat things over on the telephone or through the internet I am willing to have a go.
Being on your own is very hard, as time runs away and there are so many things a small business owner has to do on a daily basis just to survive. Therefore I can understand your frustration.
If you do get about and meet people with an interest in your business, when the opportunity arises, you could mention the fact that you could use some help and see how they react. Don't be specific, if they seem interested, invite them to meet you in a local pub or restaurant and have a relaxing hour with them to see how you get along with them.
Does your industry have a journal or website in which you could place a small advert? Maybe if you wrote a brief message on the back of your business card like 'Looking for some sales help' and handed it to everyone at a business breakfast meeting, if you belong to one, may help.
The thing is don't keep it to yourself, and don't be so reluctant to talk to people and ask for help. This site may bring up the right person if you keep asking. Certainly if you make up your mind to really go in search of that someone, it will make a difference to your attitude and outcome if you imagine what that person will look like and their mannerisms. What would you say to them, and expect to hear back from them? Can you pay them a salary or want them to work on commission?
I am not asking for answers to any of these questions. just suggesting that you think positively and seriously about the person you really want. If you don't smoke, you certainly don't 't want someone who does. Likewise, if you are a pessimist you don't want someone with the same temperament to hold 'pity parties' with when things get tough!
Hope this helps. So many small business people are in your situation Robert. So take heart and move on. Standing still isn't an option for you.
Wish you success