In Satanism there is no shortcut, no hack. Shortcuts are lies and hacks do not give proper results. The easy road doesn't take you to your goal. There is only hard work, practice, rehearsal, repetition, toil and discipline. That's how you get things done. How to open your astral senses is discussed in at least four topics every months because most people, like you, can't bother to use the search engine of these forums. The mantras provided on the JoS are already the most powerful. Looking for other mantras is pointless, a waste of everyone's time, including yours.
Mental doesn't exist. Vibration is a physical phenomena. Mantras are part of kabalah, which is rooted on the use of vibration. You need to use mantras and to do visualisation exercises. Otherwise, you will get watered down results and it will take you tens of years to be spiritually open. If you can't do them at your place, do them elsewhere. Reschedule your day so that spiritual activities are the main priority, not the other way around. Everything revolves around the spiritual. So first you plan when to do spiritual activities, then you put everything else you need to do in a day. No excuses, if you really want to advance.