@Olivier5,
Since my questions about the relevance of the unconscious remain unanswered, I wikied it up.
According to psychoanalysis and empirical evidence, unconscious phenomena include :
1. dreams, and other stuff that happens during sleep, sleepwalking, hypnosis, etc.,
2. automatic skills and automatic reactions,
3. habits, and implicit knowledge (the things that we have learned so well that we do them without thinking),
4. subliminal perceptions,
5. intuition, inspiration,
6. suppressed feelings, desires, or motives, and
7. forgotten memories (that may still be accessible to consciousness at some later time).
Among those, type 6 (unconscious motives or tropisms) can give rise to reasonable concerns re. free will. One could argue though, as they can in practice be discovered and thus become conscious. One can work on these things. The possibility of "self-improvement" is not off the table, even in people that are totally manic.