I corrected your paragraph. I tried to change as little as possible, but have it still be correct and a better flow. I don't go shopping very often. I just don't have the time. After I finish my homework or the other things I need to do, it's too late do anything but go to bed. This is why I go to shopping centers, I can save time, energy, and get some awesome discounts. Another advantage is that I can find many different types of the same product. I usually pay in cash, because if I pay with my credit card, like by mother does, I always have to check my credit card balance on the internet before I go shopping. To sum up, I'm not a shopping maniac and I only go shopping when it's essential.