Greetings, good to have a more mature member on here! 
Take a look at this post, the member who posted has many year’s experience working with his own spirit wives:
Do also be aware there may be downsides to some spiritual relationships:
It could be possible to form a longer-term relationship with a known goddess as well, succubi (spirits under Lilith) are not the only option. 
More general info here:
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