If one is at position A and one knows that position Z is the goal and there is a clear vision - then it is much MUCH easier to plan towards it.
If however one is at position A and merely dissatisfied with it - there can be a tendency to
1) spend more time than is healthy or useful bemoaning ones lot
2) take the first thing that passes ones nose in order to "get out" of where you are ( this has a strong tendency to result in frying pan into fire situations)
3) grasp at straws - in the blind hope that something ... anything else will be better
4) scattergun - where multiple poorly targetted efforts - again aimed primarily at "getting one out of where one is"
5) go round in circles or end up in the same place despite lots of effort expended
It must be emphasised that NONE of these approaches remotely resemble anything like career planning. Yet they are often used and the individual cons themselves into thinking they are doing some proactive careers work.
Proper career planning on the other hand is never desperate, always planned, not rushed and carefully targetted after extensive researching.
The questions of where to start and what to research are perhaps where career guidance can really make the most impact.
The moral is - to not spend time naval gazing and looking at what is wrong with ones career but to start a process of discovering what it might look like if it were a lot more of a fit to who you are at present.