My Mars is in the 4th opposite Neptune 10th. I was looking into it yesterday actually. Since my actions planet is opposing something in a career house I have a bit more effort to put into sticking to long term goals. But really, I'm finding the issue to be with goal making period. If I set out to do something, it gets done. So I just have to focus on goal setting, I think, and reminding myself that all the steps along the way are contributing to the goal. Helps motivate. :)