Expect the Unexpected

I'm sorry if this is somewhat repetitive of my "Spare Change" blog. I feel that it is somewhat different however.

It's crazy to me how one afternoon can cause you to completely have rethinking your entire future. How one simple thought of something different and new, brings with it other thoughts, and then another, until there is this whole new path laid ahead of you. This can be a bit daunting, and you haven't even actually chosen this course or taken any actions in that direction, and already thinking of all that it could mean, or could involve.
While on the way to lunch I was explaining to my mom what my new schedule at work will be, and what this will most likely entail. Then after I was making all sorts of mental plans about quitting, possibly doing some sort of school if necessary, and going into a completely different field and environment.
Will this new opportunity work out? Would it be worth giving up my dependable job of almost 7 years, with awesome benefits? I do want to be doing something different, is this it though? Will I end up feeling like this is my career for life whether I enjoy it or not? Will I be able to live on and take care of all of my bills with a decreased salary? Will this open new doors of positive change, working part time and pioneering again? Will this anchor me to live at home for eternity? Is that really a bad thing?Is this what I really want to do, or do I feel some sort of obligation? Will it even all work out? Is this what I need?

I tell you change is not easy. Once things start changing it requires only more change to adjust, then more. I know that it is wise to "consider the cost", and weigh all the positive and negative aspects of any major decision beforehand. To be prepared for the worst but hope for the best. To not be afraid of change and the unknown, many of times that is what we need and don't know it. When does proper analysis of a situation, and hypothetical situations of possible outcomes by choosing one way or the other, turn into over thinking or analyzing, into worthless worrying, and unneeded stress?