Ask your professor for help with basic questions. Graduate school professors usually have set office hours, during which they are available to consult with students about the direction of their theses. You may ask your professor about sources, arguments, organization and structure. However, you professor will most likely not proofread your thesis for you, because it is not in a professor's mandate to provide editing services.
Seek help from other students. Most graduate schools feature a collegial, collaborative environment, in which students frequently discuss issues relating to their subject. Your colleagues may be able to provide you with pointers about how to work on your thesis effectively and offer some constructive criticism regarding your ideas.
Visit online sources for advice on how to approach your thesis. Learnersassociates.net offers a number of tips on how to approach the job of writing a thesis and custom-writing.org provides information on how to organize your manuscript. Online sources such as these save you time and money, because they offer convenient reference advice free of charge.
Make an appointment with your school's writing resource center. The people at the writing resource center will be able to look over portions of your manuscript, and offer you advice on style and organization. Because writing resource centers are staffed by part-time employees, most of whom are students themselves, they will not be able to read your manuscript cover to cover. They will, however, be able to give you valuable stylistic advice just from reading small sections of your work.
Hire a proofreader to look over your completed rough draft. Ask her to correct any typographical or grammatical errors, and offer suggestions as to where improvements can be made. Proofreaders charge by length or by word. Proofreaders can be hired as freelancers or as editorial agency employees.