Hey,
Following is the strategy plan for you:-
Step 1 - I shall help you to revise each minor concepts that is important for GRE Quantitative section.
Step 2 - I shall divide 150 questions into 10 different section depending on the concepts involved.
Step 3 - Now i shall help you to understand and remember the tricks involved in solving the question section-wise.
Step 4 - Here i shall help you to prepare a 2 page notes with all the tricks and concepts that can help you to fetch at least 165/170, no matter where you stand right now.
Step 5 - I shall return 100% money if you get less than 155/170, 50% if you get less than 160/170, 25% if you get less than 165/170.
Note:- I am assuming that you know basic addition, subtraction, multiplication and division.