If done systematically then this method is very effective for solving problems. Even if a person gets caught in a tricky situation and is full of despair, yet this amal of ilm-e-jafar can show amazinf results.
To do it the alphabets of whatever your aim is should be separated first of all. Then the numerical values of the alphabets should be found with the help of the abjad. The result should be divided by 12. The remainder value should be matched with the number of the constellation. Then the day should be calculated by the planets governed by that specific constellation. The amal should be started from that day. The constellation which governs that day should be found so that we can recite the name Khuda according to the value of that constellation.
Inshallah the amil will get success within a weak or so.
Keep me in your prayers