Social Media Manger for an Influencer

I am a young, dynamic fashion influencer from Pennsylvania. I have worked hard to build my profile with the specific intent to showcase retailers that appeal to my age demographic across all social lines. I mix and match clothes, styles and textures with the intention of showing others the variety of ways to wear something. I am looking for a expert in social media optimization and grow my platforms. I have a strong foundation and all the right tools, just need to learn how to use them. I've tired to contact agencies, but the reality is no one has the money they are looking for to throw around.