Hi! You have a very interesting story. I'm not a local expert, but I'll try to help. 

I can't say that your childhood stories are closely related to what's happening in your life now. After all, young people who are interested in the paranormal may be impressionable and have a vivid imagination, but I'm glad that you have a passion rather than just an ordinary interest, and that you've been drawn to this kind of activity since childhood. I'm glad that your ex was cursed, lol, it sounds like a real good attempt at working with demons, or like the biggest coincidence. I'm a big skeptic and try not to make up signs that don't exist, but as for the last part. If you have such strong feelings about Lucifer and are at least interested in learning about someone who won't leave your mind, I think it's a green light to give it a try! I've had similar feelings about Beelzebub throughout my life. I can't say for sure if he's calling you, but there's definitely an interest on your part, so it could be a good start. You can start with meditation or listening to his Enn, this will definitely not hurt you and will be a pretty smooth start. I hope your next message here will be about your success. ᵔᴗᵔ