Actually, I think there is a method to her madness. You are correct, I do indeed practice both as a psychoanalyst, psychotherapist and as a career coach. However, I don't do them both at the same time or with the same person. With each new patient or client - I undertake a psychoanalytically-informed, career assessment. Then, I attempt to summarize the individual's struggles and to make recommendations as to what sort of intervention will be most helpful (e.g. career or executive coaching, psychotherapy, psychoanalysis or both).
When my psychotherapy patients require work/life consultation or executive coaching, I refer them to a colleague, hopefully one who knows how to stay out of the therapy issues and focus on the career ones. Similarly, when my career and executive coaching clients require psychotherapy, I refer them to a colleague. I find that there is a wonderful synergy between the two interventions. Each enhances the impact of the other.
Take for example, the career client who fails to effectively negotiate salary because she has such poor self-esteem that she devalues her worth and the value of her skills. Career coaching can help her to effectively manage this interaction. However, after negotiating salary, she may have misgivings and self-doubt, she may suffer from an impostor syndrome in which she feels that she is not worth what she is paid; and, that she has fooled her boss. Psychotherapy or psychoanalysis can be very useful in helping her to explore, understand and ultimately shift her lousy self-perception.
Now for the crux of your question, why can't you have one-stop shopping? Why can't you see one person for both psychotherapy and career counseling? There are two reasons, one is therapeutic, the other is practical. It is not the role of your therapist to tell you what to do. In fact, it is counter-therapeutic. Her role is to help you to explore your feelings, so that you can make good choices for yourself--and, so that you can understand the choices that you make. In contrast, an effective career counselor functions more like a coach, at times, encouraging, urging and instructing the client step by step.
On a more practical level, it is unusual to find people who are well-trained in both career or executive coaching and psychotherapy. Most therapists know little about career and executive coaching and many career coaches know little about psychotherapy.
As for the costs, yes it can be very expensive. Although if you can afford it, I suspect that you will find that good therapy and good career counseling ultimately more than pay for themselves. To cut the cost of career coaching, I would suggest that you find a career counseling group. If well run, these groups have the added benefit of learning from others and broadening your networks. As for reducing the cost of psychotherapy, I have written a column on how to obtain good treatment at a low-fee. Good luck. However, it sounds like you have already embarked on a course of treatment. Also, it sounds like your therapist has a healthy respect for the parameters of the therapeutic frame. So why not try a career group? You may even want to start by reading books on career and life planning.
