Don't wait until august. The concern of the visa officer is the money is that you borrowed from others, so actually you can not afford the costs for, let's say, 4 years for undergraduate student. Show them all the evidence that can prove the money belongs to you legally. You can also show them any document that you can prove you have high income or you own real estate and car and you are very rich. It really does not matter how long the money has been in the bank. We all know that right now in China, only stupid people have lots of money in the bank, so does the visa officer.