I don't know what you put in your proposal, but I would suggest starting over with your profile. Make the profile results oriented, not promise oriented. Tell how you have helped clients (or people you work for) in concrete terms, i.e. "saved a bazillion man hours", "increased turnaround time by 5 hours"...
Clients only see the first few lines. Make it impactful. Take out the “who I am” sentence. The client knows who you are and you waste space.
I use my proposal as the cornerstone of how to get the work, not a static profile that someone has to seek out. I think of the profile in the same way as having a website somewhere it the web-world. I don't expect anyone to find me that way, never have.
For me, I don't see anything there that tells me how you can help me if I am the client based on your past experiences. What measure of success did you achieve? What monetary or resource impacts did you make, in hard values, not just "made things better". I read this a sales brochure, not a "why I am better than any other freelancer" statement.
Don’t expect to get all you work by just making a great profile and then waiting for the clients to invite you. Develop a high quality strategy on how your proposals will look and submit, submit, submit.
After having a great description of the profile and a top-notch proposal, Will you get a job? Mmmm, I am singing with Robert...you just have to submit, submit, submit, and submit! and that's the thing you need to do very patiently.