Raising standards is a good thing, however as a student who has participated in the system of high-stakes testing, it is clear that while the system is slowly succeeding in raising scores, it is failing to prepare my generation for their own future and the future of society.
Using raising twice seems a little repetitive to me... maybe change the wording of one of the instances or change to something like "Raising standards is a good thing, but as a student of the system, it's become clear that it comes at the high cost of students being truly prepared for the real world" I know that's kind of weak, but it just removes the word raising from being used twice, which you could do any way you wanted :)
I began thinking about what skills and values were not on the test. Creativity, discovery, curiosity, integrity, and critical thinking are just a few of the skills and values that the test does not measure, but that are important to a meaningful and prosperous future.
Having 'skills and values' so close to one another in consecutive sentences is repetitive. I would change one to different wording to improve the flow a bit.
For now by simply raising awareness, in the future by voting and voicing my opinions to those I elect to represent my community, my state, and my country.
This reads like a sentence fragment, and as a result, it's unclear what exactly you hope to achieve through voting.
I hope this was a little helpful!