If you are seeing double it can help to do extra reps, in multiples of 9, of the 22nd, 11th, and 2nd letters of the hebrew alphabet when doing the Ritual's. The 22nd letter is central to the sephiroth. The last letter of the 1st sephira (Malkhut) is T. Tis the encapsulation of Tif'eret, and the middle of Keter, as well as the end of Da'at. Teb starts off the curse of the torah, and fuck is 11.
If you want to learn real numerology you need to study Math and Geometry. Meditate on the properties of numbers and you will be way better off than reading any book on the subject. If whatever you learn on the subject is false knowledge then you would only have to reprogram yourself when you find the truth of actual numerology. Meditate on the properties of one number in relation to another once you have mastered that.
To give an example: 3 is the minimum number of points you would need in order to create a space. All logic is based on 2 and powers of 2 as with one dimensional logic you have True or False, so only 2 options. Quadrant logic would be 4 so you have (True+True, False+True, False+False, True+False). Cubic logic would have 8 options with the first being all True and the last all False. 11:11 sums to 4 so there is an an association with quadrant logic. In Fanz Bardon's Initation to Hermetics(iirc) he states there are 32 types of intellect which would be 2 to the 5th power.