Most of the times the blockages we face are coming from our own selfs. Meaning, even if there is a harmful spirit within you, it is at the end your own thoughts that you’re blocked that really block you from reaching out to Lucifer.
Meditate even if its hard to do so. Don’t just say “I can’t do it” because then yes, you won’t be able to do it. You might be able to last for 1 minute a day that’s absolutely fine! Keep pushing and you’ll find out that soon you’ll reach out 3 minutes then 5 minutes then 10 minutes and so on without even realizing it. And by doing it so, you’ll understand that your intention is stronger than anything else that dwells within you.
Using LBRP or any other Banishing ritual, someone posted few days ago an exorcisim/banishing/purification from KoF. If you can learn it and deliver it by heart, even better!
Keep doing it even if you don’t feel any difference, if its needed even more than once a day.
Sage your temple/house/self.
Take salt baths.
Keep calling to Lucifer even if you don’t sense him. If you want to try another approach, that’s fine, try to petition him, petition isn’t only for spells but also to send your words to him.
Most importand: Calm your mind! Relax! Whenever you feel blocked, say that it’s fine! You will get through this, even if it means to start back from zero.
And work on your senses.
You have the authority here.