@agent00f , I believe we are not so much in disagreement as we are trying to understand each other. To clarify some things:
1. I was not calling Freud's work psycho-synthesis. I was pointing out that he fought against psycho-synthesis as a way of clarifying what analysis is not.
2. PDM vs DSM vs ICD-10 vs whatever is irrelevant here, though there is likely some case conceptualization that is at least mentally constructed as a tool of the analyst.
3. Modern analysts likely use some combination of ego-psychology, self-psychology, object relations, etc. in their work. Again, the point is not which theory of mind is correct but that some exists in order to facilitate the analytic process.
4. I do not inherently disagree with your comparison, but I will say that inherently the mind is not swimming. Figuring out the mechanics of swimming and physics of water does not confer change itself. No human being can explore their mind however without things changing -- independent of any explicit or conscious attempt to do so.
I would point out I've learned through rather empirical exploration that the mechanics of physical or mental or metacognitive activities aren't so different. Let's say for example the activity isn't swimming but playing chess, whose distance to figuring relationships is closer; and there are surely many even closer examples.
The ladder of skill level for any challenging activity is steep and long; it's rather indicative of an undeveloped field when the rungs or even how to measure them are not so clearly established. This is actually a blessing in disguise for more curious explorers.