Is really all the Torah is to you?
Generally the Torah way of life even with restrictions is with Simcha. Shabbos and Yom Tov become part of life and are not viewed as mesiras nefesh, but actually joyful times.
Those who say “it is hard to be a yid”, discourage their kids from keeping Torah and Mitzvos.
When one comes to a Rabbi with a problem about the restrictions on music during the Sefira or 3 weeks, there is usually some deep reason he or she needs the music. In the present day mood disorder problems are very common.