There is no need to apologize. Everything you wrote made perfect sense. You are suffering greatly and your parents won’t help you. This may be in part because they can’t afford treatment. It also may be because they are simply ignoring you or don’t believe there is something wrong. You’re been diagnosed with multiple psychiatric illnesses and you’re currently experiencing suicidal ideation. These symptoms require immediate attention.
The other concern is that you have a problem with your gallbladder and an unidentified rash on your hands. These conditions may require medical treatment. At the very least, they need to be assessed by a medical professional.
Your parents don’t have the right to ignore your physical and mental health needs. By law they have to help you access treatment especially for a possible medical concern until you’re 18 years old. If they cannot afford health care for you the president recently re-authorized a bill in which children under 19 years of age (age may vary depending on the state) can have free access to medical care if their parents make less than a certain amount of money per year. It’s called the SCHIP program. You could make your parents aware of the program. Do a Google search for “SCHIP program” and the name of your state. This should provide you details on how your parents could access this program.
In this situation you have several options. One option is to go to an adult such as aunt, uncle, pastor, teacher, mentor, or doctor and ask them to help you. One of these individuals may be able to speak to your parents on your behalf.
You could also inform your parents that you’re planning to go to someone else for help if they won’t. This may get their attention and make them believe that you are serious about your symptoms.
You can take yourself to the hospital. If you tell the hospital staff that you’re having suicidal thoughts as well as medical problems they would likely admit you and contact your parents.
One last thing. It may also help if you give your parents this letter and my response. Once they read it they may realize just how serious you are.