You can consent to your own health care as an unemancipated minor in Indiana if you are:
(i) at least fourteen (14) years of age;
(ii) not dependent on a parent for support;
(iii) living apart from the minor's parents or from an individual in loco parentis; and
(iv) managing the minor's own affairs.
If you are living with an adult who is taking care of you "in loco parentis" but who is not your legal guardian, and the problem is that your mother is not willing to leave the house, there are various ways to work around this without going to court.
Your mother may be able to simply sign the consent form from the doctor's office at her house.
Your mother could give written permission to consent to the other adult who is taking care of you through a power of attorney. This procedure is outlined in IC 29-3-9-1. It is very easy and does not require going to court.
I have attached links to the statutes and also a link to an article about Indiana medical consent law. This article includes details about how to write a simple power of attorney document that would give someone else power to consent on your mom's behalf.