Well done for starting to establish a meditation practice.
You have a very developmental / progressive model or assumption underpinning your view.The goal is to get into the habit for now and eventually get more and more focused :)
What about if you sat down and on your first sit radically changed your experience for ever?
This is like how you are with inquiry........
Be relaxed, curious, and open, really look, and who knows what you will see........
Why not re read some 'Gateless Gatecrashers'?
It is free somewhere on the website.
If you are going to do the boundary excercises again do it with the intensity that it is just one shot at it.
Is there a seperate self doing the looking, making decisions, having experiences or not?
If you really think it is there still then the onus is really on you to find it.
Is it your body?
Is it your thoughts?
Is it controlling what you do?