You must proofread your work before you let others take a look at it. It is normal for everyone to make mistakes so don’t be too hard on yourself if you make mistakes that are made by elementary students. It is possible you did not notice them so it is always a good idea to read your work several times to make sure you don’t make simple mistakes. Once you have done that, you can also advise your teammates to do the same so when you get to their work, you won’t have to edit that much. It won’t be hard to learn how to use Ace as it is something you came across with several times before.