Manuscript Editing and Proofreading

I am looking for a native English speaker who can edit my manuscript of 85,000 words. I need someone to correct the tenses of my book. I also need someone who has some prior experience in this job and had edited manuscripts before. It would be great if you are a reader yourself, so you can give me suggestions about my book. The book is a young-adult romance fiction novel. Attached you can find the summary and the first three chapters. Please write to me with your interest in the project and we can have further discussions.