If you suspect that someone or something is astrally messing with you (either consciously or unconsciously) but you're not quite sure who or what it is, here's a modified NAP ritual that worked well for me. Mind you that there's no harm of doing it even if there's no real enemy out to get you (although if you are getting obsessive out of head thoughts etc. more often than not you are on to something). This ritual should make whatever is bugging you go away (remember to keep up with your daily banishings...) Note that whenever you recite a chant, repeat it twice, so that you have chanted every chant three times total.
While sitting comfortably in candlelight before your altar, and burning a stick of Frankincense...
Dab some hyssop oil in your chakra points or wherever while saying "purge me with hyssop...." etc. or sprinkle yourself with blessed salt water.
Perform the NAP relaxation ritual so that you're really relaxed and as calm as possible (repeat if necessary), then do the Nap Defensive Armor ritual, complete Exorcism To Repel Evil Spirits, 3x Invocation For Protection From Evil and Occult Judo Ritual (complete with Central Pillar Ritual).
After the NAP rituals open every door, cupboard, drawer etc. in your apartment. Starting from your front door and walking deosil around your home, sprinkle consecrated salt water (GKoS has good consecration) to every corner, entrance and opening, taking extra care to sprinkle openings that lead outside e.g. front door, windows etc. Do this while saying "I purify with water and salt" or something similar. When I sprinkle, I tend to do calvary crosses but YMMV. When you're back at your front door, purify your front door once more with care and repeat by (preferably consecrated ala GKoS) waving a Frankincense stick, while saying "I consecrate with fire and air" or something like that (again while making crosses if you wish). And finally, if you own some, dab some hyssop oil to door and window frames, while praying to whatever you believe in to keep evil from entering into your home.
Return to your place of practice, and thank the forces for their help, and ask them to return to their sphere of origin while continuing their missions and being ready to return quickly when called, and close the temple by sign of Harpocrates.