Do I keep life, what should I do next?

If you have the currency you should use a whittling omen and remove the life if you can

Depends what you're trying to do with the amulet. Omen of light is very cheap right now. So what I do is use it to remove unwanted mods with crystallized + abyss essence.

Now remove prefixes and keep desecration for spirit (if you need it)