Hey Hanna,
The form is completely automated and makes a decision based on the info you provided. If you’re not seeing the percent you expect then you can try re-taking it. Double check each page to make sure it’s filled out correctly. We can’t offer professional advice about how to setup your tax situation. I recommend asking others you may know that are in a similar situation. Many people are able to find the answers to their questions with some research online, and don’t have to hire anyone to help them.
I found your support ticket and sent a reply with the link to retake the tax form.
Thanks