1-Read your topic carefully.

2-Begin your research early to avoid disappointments.

3-Formulate an effective Thesis statement.

Starting Up - How To Write A Thesis

The best way to get started on your thesis is to prepare an extended outline. You begin by making up the Table of Contents, listing each section and subsection that you propose to include. For each section and subsection, write a brief point-form description of the contents of that section. The entire outline might be 2 to 5 pages long. Now you and your thesis supervisor should carefully review this outline: is there unnecessary material (i.e. not directly related to the problem statement)? Then remove. Is there missing material? Then add. It is much less painful and more time-efficient to make such decisions early, during the outline phase, rather than after you had already done a lot of writing which has to be thrown away.

How To Write A Thesis