Your an experienced IT Tutor working with people with drug and alcohol issues and mental health problems? Through my personal experience working for multiple job network provider, you would be a valuable asset working in a TAFE where they teach IT to people with D&A issues and mental health issues. You need to contact TAFE's, community organisations and local community colleges, even if its for volunteering initially. Your age is an asset in regards to experience and outlook.
Ensure your resume is bang on and reflects all your skills and experiences. Don't be shy and get facetime with these organisations. RTO's are booming, you may need to get yourself a Cert IV in TAE.
I deal with these organisations on a daily basis and know your experience would be sought after