Please tell me how can I improve my UCAS statement

It was not until I saw my brother playing GTA vice city that I was interested in the hidden science behind those simple and easy to use games and application , I wondered how did pressing the keys on keyboard make the player run or jump or even change his clothes and all other things that happen in the real world , it's funny how I initially thought them to be living characters trapped in the computer and tried to split open the monitor while my parents were away but luckily I couldn't ,to my their relief obviously you cannot expect a five-year-old child to understand everything. Unlike my brother who was just interested in crossing the levels in the game, I was more concerned about "behind the scene" since then I decided to figure it out myself.As an 18-year-old now I obviously know how GTA games work but I am more interested in making the virtual world even closer to the real world and I believe studying computer science at an even higher level will help me expanding my creativity levels and endorsing them into something more perceivable
Beginning with languages like LOGO where I was taught to do simple FD 40 and RT 30 and those pattern displayed on the computer astonished me and as soon as I reached home I drew some more complex pattern and asked my teacher how to code them ,she was the first one to explain me how mathematics and computer science are interrelated and that I need to learn the geometry first to be able to code those design same was the case with BASIC and JAVA where mathematics was the source of logic behind the program .Nothing attracts me more than logic, I think logic is something that helps everywhere from understanding people's perception to memorizing the complex.Studying science requires a good amount of logic and creativity and certainly practice which I think comes with interest which comes with curiosity which in my case was GTA
Curiosity drives me to the questions beyond my syllabus and creativity and logic helps me in solving them and that was the reason I was more interested in solving the double dimensional array problems when my teacher was teaching us how to bubble sort the array.I know that in college I will be taught more advanced and latest language like Python and others but still, I think my expertise with java will help me throughout because more or less all the languages are interconnected and being fluent in one will never harm.
Calculus was never more interesting for me before I studied its application not just in calculating areas but in physics laws of motion and chemistry's kinetics and where not.I also took various MOOCs in advance mathematics from Coursera and Edx to enhance my ability in calculus. Mathematics helps me in real life too, to keep thinking about all possible solution and to keep fighting for solutions because there is always one out there if it isn't it would be a fact and not problem.It will be impossible if I say that I never did question wrong but I have always tried to find where I went wrong and how can I improve.
Even when I was the captain of my school I never had any serious problem performing my duties it made me more disciplined and enhance my leadership skills and co-operational skills
Sketching has also helped me in building my creativity and made me a better observant of things because sketching essentially requires great observational skills, every time I go wrong with features I close my eyes to visualize it better where exactly is it going wrong whether it is proportion or the shaded effect, same is the case with baking and singing.