Being okay with death (both egoic and physical, that is, if we must separate the two for granularity) is what it takes to be secure exactly where you are.
Physical death is feared because the extroverted mind sees and feels the persisting (sense of the) body, identifies with it, and takes it for "I". The illusion runs so deep and strong that you go around exploding angrily on anyone who asks you to shut the fuck up and meditate traditionally with discipline and see for yourself of course because somebody is challenging your current view which says and validates that you are very much the mind-body or more technically the thought-sensation all of which has been strengthened over time through deep emotional investment in the view.
This is the egoic death part and the ego/sense of "I" resists this because it means falling and standing on no ground (a.k.a. not fixating) which it doesn't trust itself with, but well that's where things get interesting.. when "you" take the perceived blow and assault and just stop and see what happens. Was there ever anyone born who could die? find out. It's the most adventurous thing you could do. Nothing compares. And I am still describing the pure bliss of Nothing part (or more accurately experience of Non-Experience) in a very understated way.
I don't trust or recommend any new-age practices, they only reinforce the illusion precisely because the premise is to suit one's egoic preferences/likes-dislikes. Anything that isn't leading towards shedding attachment to these and realising that they are quite not "you" is fake and a waste of time.
The criterion as always is to abandon views, ideas, fantasies of enlightenment and liberation, and become painfully truthful to yourself about yourself right where you are. End all reactivity (a.k.a. stop reacting to the reactivity that plays out as thoughts, views loaded with emotion-sensation. No it doesn't mean not feeling them, only not reacting to them).
Do not try to conclude or not conclude.
In other words, shut the fuck up (inwardly) and go all in.
Try it and see how hard it is for you (at least initially) and why you go from doubt to doubt endlessly.