Make sure to balance all your main chakras, this will enhance your higher self connection naturally. I would say the higher self mandala is to strenghten your connection but for a session imaginarium divine is actually better, you can find it on patreon.
Hmmm sort of but the main thing is to use your ego instead being used of him (sort of good servant but bad master) Knowledge and mindfulness is key.
No your higher self is your guidance not your babysitter. I saw it so many times that claim on every single time “my guidance told me this” on every single bit…Doesn’t really work that way.
See it more as a “the ever silent observer” in you, the first and most important thing is to detach yourself from your toughts and emotions. Ego dissolution is good for this one.