the kind of further condensation that I would suggest:
The achievement made me a sort of a hero at school. Everybody in school recognized me and my seniors gave me important roles in the school student committees on sports and literary activities.
The achievement sort of made me a hero at school and my seniors gave me important roles... (If you are the hero, it's implied that everyone recognized you. Get what I mean?)
The Principal, Ms. Y liked him much that she treated him as her own son. She would take him out to dinner once in a while and help him with his studies. She once declared that X was the best leader and person ever to study at our school.
you spend 3 sentences discussing about someone else...you could simply say that the previous SPL was a legend and loved by the principle without getting in the details. Remember, the essay is about you.
There lay my problem too
you don't need "too"
This brought me into Ms. Y's bad books
I still don't understand. If you are in your principle's bad books in 8th grade, how did you become SPL in 10th grade? there are some time conflicts here...
But Ms. Y was never impressed with me.
did that happen in 8th or 10th grade?
before or after SPL?
During my journey I introspected
misuse of introspected...introspected myself? or simply "reflected"?
That I wanted only to impress Ms. Y was an indication of my immaturity
The fact that
I need to take decisions
I need to make decisions, (i think that's what you mean right?)
again, although much better than last time, it's still very long...I think it's because you cut sentences which could be merged to read smoother. For example:
I sought the advice of some of my classmates. Unfortunately, these students wanted to use my
I sought the advice of some of my classmates, who, unfortunately, wanted (this way, you save repeating "these students)
The school had a warden who would always pick on me and demean me in front of teachers. I did not give him much notice and went on as usual. This particular person
The school had a warden who would...teachers, but I didn't give him much notice until he became hated by my group. (this saves you "went on as usual" (which is very awkward) and "this particular person))
Try to condense your sentences to avoid repetitions of subjects, which in the long run REALLY distract the reader.
Finally, I just want to reemphasize that I am really confused by your timeline.