40 days and 40 nights

As of yesterday there is only 40 days until my 21st birthday. I thought that it would be a good idea to challenge myself and do a "Lent" before my birthday. To give something up. I thought about sweets. But everytime I try that it never works. I am a sweets fanactic. And I had two chocolate chip cookies and peanut m&ms yesterday. I need to decide by today though because I'm at day 39 on the count down as it is. If I can't come up with anything else then it will have to be sugar. It will be really really healthy for me if I do.