If you are unsure about a decision you have to make, there is a specific prayer that you can do to ask for Allah's help in making your decision. This prayer is called Salaat-ul- Istikhara (Prayer of guidance).

Istikhara is Sunnah and should be performed for all permissible acts which are not obligatory i.e. Salaah. Meaning one cannot perform Istikhara to see whether they should pray their Salaah five times a day or not, because Salaah is a direct obligation and an order from Allah. In the same way Istikhara cannot be done to see whether they should do something Haram or not.

Istikhara should be done when a person needs to know whether the decision they are about to make is going to be better for them or not, i.e. marriage or going on a journey or starting a business etc. One should be aware that Istikhara is a permissible act and therefore if a person does Istikhara but neglects their obligations etc., then this may be of no avail to them.

Ofcourse, Allah (swt) knows best