.... Generally, a person with a family to feed does not leave a livelihood to try out new and different parnossos, especially after working in the same line for a while. Although you write that the seviva is not a good fit [the people at your workplace do not add in yiras Shamayim, etc.], yet, where you live now, you are surrounded by yirei Shamayim. As a result, your workplace will not have such great influence on you if you decide to live your life in accordance with the teachings of the Torah and to fulfill its mitzvos, of which the passuk says, “V’chai b’hem.”
It’s understood that for many reasons, it is not worth debating with these people at your work. Instead, be a dugma chaya [living example] of how a Ben Yisroel conducts and carries himself, as every single Yid is called a ben Avrohom, Yitzchok, and Yaakov.
We see that the attitude about many matters and environments depends on how you approach them. What I mean to say is that if you look at your present job with discontent or, even worse, as an unfavorable environment, this can have a negative impact on your attitude. But if you look at your place of work as a source of parnassah to use for Torah and mitzvos, giving a chinuch of Torah and mitzvos to your children, the hardships that exist in any type and place of work will not bother you as much and will not affect you at all.
==== Igros Kodesh V22 p. 296
