Lucifer is the Morningstar, the light of humanity, and literally Jesus, he said so himself. Of course he was demonized, controllers and archons hated him and inverted everything, almost destroying all that was good in Christianity. Almost, but but not quite - ignore the tacked-on Jewish old testament parts and just hear the teachings of Christ and it’s still there, and also look up the books they threw out of the bible for the rest. .
Don’t forget to try the search, we have 14 years of posts and a lot of them are people talking about their experience working with Lucifer; they won’t be repeating themselves but they answer your question hundreds of times over. 
Please do let us have your Introduction HERE [ ← click me! ], which we need per the forum rules and see our posting guidelines in the FAQ.
Points to cover:
- Where are you from?
- Do you have any practical experience in magick?
- If so, what exactly do you practice and
- How long have you practiced?
- What are your areas of interest?
The getting started guide with all forum orientation stuff, links to tutorials and popular megathreads are here: GETTING STARTED GUIDE, Rules, Notables, Tutorials and References. The links in that megathread are forum-made tutorials for things like spiritual hygiene, developing your astral senses and avoiding impostors and parasites… When you can be sure you’ll not get attacked by parasites, then try Unofficial Tutorials: First Contact from Sigils to Evocation Collection.
For reference:
The rules are here - please read them.
The posting guidelines are here in the FAQ
The Terms of Service are here