You mention being scared to try….for me, Angel Numbers just happen …. For example, you see 444 as the time 4:44 then same day or next you see it again on a receipt then again somewhere else…then you realize it’s more than a coincidence….
In my experience, loved ones who have passed will communicate in this way….I also find feathers everywhere, especially just after someone close to me has passed.
When I experience these things, I sit silently and try to let the “message” come to me without effort.
As far as invoking spirits, unless you are super aware and very clear discernment, it’s very dangerous to try to reach spirit outside of your religious beliefs. Etc. Hope this makes sense I’m not one with words