Spirituality and the desire to come closer to God through Mitzvot is not just "doin' it. The question is kavanah, and source of the desire. These are considerations that go for men as well as women, young and old. Are you looking for photo ops, or something deeper. What of the Haredi women that feel as attached to Mitzvot tha don't feel they have to put on Tfillin, or wear a Talit Katan, are they less pious?! Halachah is a "normative " thing that expresses a way of life that God offers the Jews within a community. Some of us are spurred on to "more", but that is usually expressed by withdrawing, into sometthing more intense, rather than goin' out in front of a camera. You will agree that not all young women, or adult women among Halachically Observant Jews take your path for their own reasons, and not just because the rabbis told them "what to do". Are they less observant and you more observant, any more than a man, young or older that places more stringencies upon themselves more piious. Halacha is a standard by which most people can follow. You, obviously are not "most people" and that is fine, but the rabbis were concerned about misplaced zeal whose source was in the Yetzer HaRa. All too often, piety can be misdirected, not to God, but in a Selfie way--this goes for men and women. Far be it from me to judge your path, but before you set out to fill the pages of a newspaper, you , like all of us introspect, yet again before you go down the path of Nadav and Avihu, albeit pious, even more than Moses and Aaron, but whose misplaced motives lead to being "burnt out" too earlly.
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from the article: You say women 'don't need' tefillin? Here's why I do