I will give you life changing advice in less than 1 min.
Ready?
Humans die. We all do some day. And life is short.
Your lungs are 'designed' to breathe in OXYGEN. Period. Not smoke of any kind.
If you love your kids, and want to extend your life. STOP SMOKING.
You need to go clean from that junk, and then access the situation with a clear mind, and fresh clean air going into your lungs.
You wouldn't put cement into a gas tank in a car, likewise your lungs are NOT designed for smoke of any type.
Since you clearly are in poor health why don't you try acting like you really care about it and DO SOMETHING to CHANGE your health in a positive direction. You may not be able to fix EVERYTHING wrong. But that would be ONE STEP in a positive direction for your own health and well being, as well as for the longevity of your life, so that some day you can see them get married, or perhaps even be a part of your grand kids lives when you cross that bridge.
Smoking hurts. Smoking is selfish. Smoking kills.
I quit smoking years ago. I use cannabis because of my pain. I refuse to be part of big pharamas' skeem. But feel free.