Aveirah, it can be an issue of Yuhara to search out chumros. I did a Google search to find an exact source, and actually it turned up an old thread from the Coffee Room (and my old friend Feif Un): https://www.theyeshivaworld.com/coffeeroom/topic/taking-on-chumros
Also look up what R’ Shlomo Wolbe said about proper Avodas Hashem vs serving your own ego and desires to be more “frum”, without considering what it actually means.