thisisblue - Please make an appointment with a certified addiction counselor (CAC) at a facility that treats those with a substance abuse problem. In addition to the inhalant use, the dxm can result in dangerous hallucinations and cause other serious health issues, too. What really concerns me is that you said that you didn't care if you died. Please decide to take control of your life and seek treatment.
For anyone feeling suicidal, here is a toll-free 24-hour helpline: 1-800-273-TALK (8255). A website for more information about suicide prevention - American Foundation for Suicide Prevention: http://www.afsp.org
Some people have both a substance abuse problem and mental health disorder, and there are even outpatient programs for those with a dual-diagnosis if that suits you, according to a licensed mental health professional. Those programs are also referred to as MICA (mental illness chemical addiction), and they usually have a board-certified psychiatrist on-staff to deal with prescribing medication for the mental health issues.
Please seek outside help without delay!!