www.sharkfinesse.com/ Discover NPV, IRR & Payback Without The Need For Complex Spreadsheets
How I did it: Just saved and saved and saved like mad till eventually had enough to repay her :) If you think about how your spenting your money than you can do it. one of the main things I thought about was how good my sister was to give me the money in the first place and that drove me to repay her.... it wouldnt be fair to not pay a family member back after they helpng you out :)
Lessons & tips: be careful with your money..
Resources: working :)