Primordial awareness which is your true nature needs no development- the whole enlightenment process is for the mind/body structure.

I would recommend various simultaneous approaches to loosen the bonds of the mind/body.

1) Formal meditation practice to purify the self structure of samskaras.
2) Self inquiry- continual awareness of awareness
3) In day to day life question everything that the mind thinks and don’t react to what you know are illusions/ delusions
4) Act for others selflessly and without any expectation of something in return
5) Exercise and conditioning of the physical body
6) Continual awareness through the sleep cycle. Staying conscious in dreaming and deep sleep.