Hi,
What has to happen, happens by God's will, and it is for your own growth. Take it that way. You cannot hold anything or anyone back. It is even wrong to try to do so, though we all want to. In trying to do that, we only block energy. Let things flow and take their natural course, whilst you live your life and do things the way required at a given time w/o trying to put any pressure in order to make them take a certain direction. At best, there might be a little delay, but they won't last, if they are not meant to. Also, please do not forget that we are human beings here trying to 'interpret' a chart. Human beings make mistakes. Don't let a chart reading become your life plan. Never make that mistake.
Jupiter changing signs can mean many things in this chart. It leaves its sign of detriment, so a positive. It also leaves the sign of Merc's dignity; however, in doing that, it also enters the sign Merc is in, and the sign of the Moon's dignity. The Moon is taken as the querent's co-sig. Not the quesited's. Over and above that, it is taken as the engine of the chart.
Let things flow, and don't push. Just be yourself.
AQ7