First up, welcome to the forum.
To answer your question, you may not be able to single-handedly make this work. It's going to take all three of your working together. The first thing to do is to find out whether the three of you have a common set of goals that you are working towards. This means the three of you sitting down and talking it through. If you don't have everyone on the same page, then it's going to be a huge challenge to try to make this work.
Maybe your relationship will be more a "V" - that can be quite workable if everybody is happy with that.
"Listen, or your tongue will make you deaf." - Native American Proverb