I know that tohfatulawam contains some pages with a direction to the questions you have in mind. I wanted to know what are the etiquettes of acquiring an answer. Is there something like a dua or ism e azam we have to read before opening the book for the answer? I will appreciate any kinds of help! Also may I ask some effective duas and amal to ask for the impossible. I know nothing in front of Allah swt is impossible and I don’t want to lose hope either, maybe a dua or amal would work.

I dont believe in tohfatul awam way for finding things. You can recite Dua joshan e sageer. InshAllah your problems shall be solve and wishes fulfilled