Hoping something is effective, is not going to make it effective. starting a working during the completely wrong time will make it barely effective, if at all.
Sunday October 16, Moon just begins to wane in Taurus. Taurus rules permanence, Sunday rules the Self. This is a good day to begin a freeing the soul working.
Mercury does not rule freedom in the sense of freeing oneself from stuff. I've seen int he groups before, someone posted that and I asked him/her their reasons for it and they did not reply. Look to multiple sources before making a decision.
As for your other post about wanting to do 3 workings. I have been doing freeing the soul workings for about 5 years. These things take time, to completely rid oneself of multiple karma from multiple lifetimes.
One last thing. I've noticed some people jumping to freeing soul workings right away. Many things do not need a freeing the soul working, they need a working (either spiritual or physical) to get the thing that is desired. For example, if someone has self-doubt. A freeing the soul working to rid oneself of self-doubt is not needed, unless it cripples them to the point of not being able to function in life. What is needed, is practice and experience doing stuff to overcome the self-doubt. Do not underestimate good old practice and experience. It's what toddlers do in the world to grow and develop. Working on the solar chakra also assists for this.
Freeing the soul workings are for deep-rooted issues.