What a time you are having , life can be so very hard and Jen's death coming so soon after Mick you have barely been able to draw breath before you have been knocked down again. I know that you will get through this but I also know this is another blow before you have properly dealt with Mick's passing.
I know that you are heading to Atlanta at least there among family you can allow your thoughts and feelings to come to the surface. As you said you can sit awhile at Mick's tree , he won't be able to answer you but I am sure he will hear you. I think this will make you feel a bit more at peace.
As for making your new decisions don't rush yourself , I think that you maybe needed more time anyway and this is why you felt low at the thought of change. I read somewhere once that the first stage of grief can be anything up to 5 years and I would agree with that . Not that I am suggesting you should wait 5 years because you will be at least 36 .
We all care and are thinking of you, you are one special lady . I will never understand why some people can sail through life with no trauma, nothing out of the ordinary happening and others just seem to get one knock after another.
Stay strong SS , sit with Mick for a while and let the love from all of us wash over you.