I heard that to improve any situation we may recite 100 to 1000x “HasbunAllah wa ni`ama ‘l-wakeel” daily and Salaat al-Tunjina 7 times daily.
1.Can we do this for any situation?
2.What is Salaat al-Tunjina?
Yes. It is an invocation of blessings on Prophet (upon him blessings and peace) with the intention of self-purification and removal of difficulties here and hereafter.
Its wording is here.
Hajj Gibril Haddad