It's a solid essay but since you have extra length, it would benefit from specific examples - IN CAPS to "SHOW" AFTER EACH "TELL" ::
Growing up with such a strong role model, she has shaped many of my
personalities (WHAT VARIOUS PERSONALITIES, or DO YOU MEAN ASPECTS OF YOUR PERSONALITY??).
Not only did I learn how to be independent and confident in myself, but I also gained her
enthusiasm for life . (WHAT ENTHUSIASM FOR LIFE? LIKE IN PARTYING, ART, CHILDREN?)
She never forces me to do anything and I think this is why I am such an independent and self-managing person today (EXAMPLES OF WHEN YOU WERE SELF-MANAGING/INDEPENDENT?)
These changes weren't easy, as I was reluctant at first (WHAT CHANGES?)
In other words, she wants me to be prepared to face the worst case scenario. She never forces me to do anything and I think this is why I am such an independent and self-managing person today.
THE FIRST SENTENCE DOES NOT LINK TO THE SECOND.
She has always been the one who pushed me off the bicycle so I can ride myself.
DID YOU MEAN SHE PUSHES YOU ON THE BIKE?? NOT OFF?
Everything that my mother has ever done has been overshadowed by the thought behind it.
WHAT THOUGHT? CARING LOVE? DO YOU MEAN THOUGHTFULNESS?
While the many experiences I have had with her had been spectacular,
GIVE EXAMPLE OF THE MOST SPECTACULAR EXPERIENCE
For the close, maybe it will be more impactful to write about how she remains your inspiration for making your life truly exceptional (as you said in the preceding paragraph)? I know this is hard to answer but try to think about it - aside from being your mother, why else is she important to you?