I got fired from my job. The reason given was it was not working out. Besides seeking out a new job, is there anything I should do from a mitzvot standpoint?
You are obligated to make your best and most appropriate efforts to get yourself the income you need to fulfil your purpose. As an introduction read this article.
You also need to pray for your income as we learn from the first man. See Braishis 2 (5) and Rashi’s commentary there.
This is explained in this extract from here
May you be blessed with an easy parnassah.
Do Teshuvah, Daven, and give Tzedakah.