I talk with many business owners every day that are extremely giving in their time and talents. However, when it comes to receiving, they have a bit of a harder time. (I've been there too. I'm a recovering I-can-do-it-myselfer.)
At one time I had a private client that told me that she felt weak when she asked for help. I don't hold that belief. I believe you show strength when you can recognize the things you do well and the things that you don't do well and then accept help.
Accepting help can come in the form of a friend doing something simple, or you delegating a big project in your business to someone else and everything in between.
I know you are a blessing to others. You know how wonderful it feels to help someone. Share that feeling! Let others bless you!
When you allow yourself to be supported by others you allow your message to impact more people and then the world is a better place.