I haven't read all the other posts but wanted to say that we can all do our bit for destigmatising mental illness. Most people do first aid courses for physical health emergencies. I believe we should also be doing mental health first aid (www.mhfa.com.au). If you are in a good space to do it and feel ok about it, correct people who use the wrong terminology or make ill-informed comments, (ie it's not commit suicide, it's 'complete' suicide- suicide in Australia is not against the law so to do it is not 'committing' any crime). Tackle the myths about mental illness (anti depressants are addictive- umm, not they're not) and if you have a mental illness and feel like you can talk about it do some advocate/spokesperson work to educate others.
Good luck to all of you doing the hard yards.