I agree, wait on the big decisions too. I also have been going thru major changes due to a loss. It's hard, I feel for you, especially losing contact with a child.
I have come to a decision that I can't expect the whole world to get better, much as I try and hope. So, I'm going to focus on my piece and try to bring some peace into my part of the world. For me, that means going without meat and the killing of animals for the winter at least. And I'll try to be way more careful about what I say! If you feel that riding more will help you and your peace of mind, that is healthy and smart. It sounds like a great way to make a statement against consumerism and pollution. Why don't you try it for a period of time that seems sensible and then decide about your car? Sorry you are hurting, glad that you are taking the lesson and doing good!