Paul Graham mentioned in his essay that if you ask a good hacker how good he is, he might replay “i don’t know”. He’s not being modest, he really doesn’t know. But i think it’s not a bad idea to test your skill of coding and find out how good you are. How about if you challenge yourself to make a new application every day?
Don’t worry, you haven’t miss anything. By the time i write this, she is in 10th day of 30 working days she planned. You can also chat with her while she’s working on an app.