Dear Blaze, Numerology does play quite a significant role in how we're aligned with our destiny. BUT it is also true that the future is not set in stone.
I'll chalk out roughly the way numerology works. You see Everything in the universe has a certain unique vibration. Numbers too have their own vibration and Every letter of the alphabet has a certain vibratory number to it.
That being said, The planetary position at the time of your birth plays an important role in the way your personality is shaped. Depending upon your zodiac sign you vibrate at a certain frequency that is aligned with your ruling planet.
Say for instance your DOB is july 9 1996, your ruling planet would be mars/moon. so choosing a name (or a name that includes a sound) that resonates to the vibration of moon/mars would be beneficial for you.
Now each number is assigned a numerical value from 1 to 8 as below:
A, I, J, Q, Y ----------- 1
B, K, R ----------------- 2
C, G, L, S -------------- 3
D, M, T ----------------- 4
E, H, N, X -------------- 5
U, V, W ----------------- 6
O, Z --------------------- 7
F, P ---------------------- 8
Say your name is Emma Lee, calculate the compound and singular numbers
Emma - compound no: 5+4+4+1 =14 singular no: 1+4 = 5
Lee - compound no: 3+5+5 = 13 singular no: 1+3 = 4
therefore name compound = 27 and name singular = 9
now, take your birth date i.e 9
Each birthdate number has a set of name single numbers that carry vibrations that are harmonious to them as below:
birthdate number -------- name single number
1 ---------------------------- 1, 2, 9, 3
2 ------------------------------ 2, 1, 5
3 ----------------------------- 3, 1, 2, 9
4 ----------------------------- 1, 6, 5
5 ---------------------------- 5, 1, 6
6 --------------------------- 6,5
7 ---------------------------- 1, 6, 2
8 ---------------------------- 1, 5, 6
9 ---------------------------- 9, 1, 2, 3
so if your birth number is 9 and from emma lee, name single equals 9 it means your name is harmonic. Thats the general idea.
However, i would recommend you to not get too caught up in this. if you'd like a new name for your self just request your guides/angels to pop it up in your mind and take some time to meditate upon it. If you feel a pull towards that particular name then that might be whats meant for you. It'll come to you on its own. and you have this to tally should you need it.
Good luck