I would suggest a cycle length of about 8 wks, followed by time off. You don't have to worry about testosterone shut down like men do, but you do want to allow a break for your body. Steroids are toxic and over time, are more likely to cause an issue. Also, you want to give your body time to find it's own hormonal balance again. For a first time user, I would not have gone above 10mg. Over time, it'll take more gear to get good results. The more gear you use, the more likely you will suffer from side effects. And for females, there are less safe options. So I would get the most out of less anavar, for as long as you can.