We all have strengths. When you live with bipolar it is vital to focus on what you are best at. You will also benefit from admitting areas which need work.
Many parents have shared they pay their kids bills. The fear is one day they will not be their to manage their kids finances. It is for these reasons we need to teach important skills. One big one is managing finances.
If your child or you cannot do this then hire a trained person who will leave out any emotions. This will create accountability and make it clear. In my own life I am learning to be responsible. I have made mistakes but accept and learn the lessons.
One of the best gifts are to teach how to be responsible. I am at Walmart grocery shopping since this save me $200 a month. It is not glamorous but is important for my family. When you choose to make wiser choices it becomes easier.