I would wait til you get all the money first. The reason for that, is that from what I've seen, flying is a totally new skill for anyone. This means that the more frequent you can fly, the easier it will be and cheaper. If it is spaced out longer, you will end up spending more time going over lessons or skills you learned last time which will make you spend more money. At least this is what I've seen with my students. So my suggestion is to save up and take a summer off and in about a month and a half, if you fly three to four times a week. Hopefully this helps!!!!!!! Good Luck!!!!!!!!