One of the most consistent results for planets in 8th house I have seen is that they do give you lots of ups & downs.
It will be a roller coaster.

You can never plan or prepare for what 8H planets can throw at you.

Another theme is the more you rely on your thinking or intelligence the more 8H planets will humble you.

The only way forward is to merge yourself to divine.

You can never be prepared so the best way forward is to not expect anything.

Reading & internalising Bhagvat Geeta will help you grow tremendously with your 8H placements.

Most 8H people will also feel a presence of a guardian angel or higher inutuion protecting them in critical times.
But they will often feel frustrated too because the help won't come when they expect, rather the help comes when they need it the most.

Read this long back & it struck me wild

"God is a way between
acceptance and non-acceptance
Liking and disliking
Attachment and detachment
Being and not being”

This should be the mantra for you if you have 8H placements.