Dear Erica:
I am also new to this and as such, I do not have any actual online writing experience either. I am a full time college student looking to put my talents to use, one of which is writing. I am a native English speaker with a high level of proficiency in writing, with respect to grammar, punctuation and style. While I recognize that someone of my age as well as academic position may not seem the most ideal candidate for such work, I am confident that I can provide you with what you need, as I am a hard working and highly motivated individual who not only gets the job done but gets it done well.
I hope that I may be of possible interest to you and if so I look forward to discussing matters further.
Kind Regards, Sara