I lost my supposed tuition money.

This money was from a “program” of our city (I am from Asia) where we will be working as student assitant or some duty in our city hall for 1-2 months then they’ll give us money for the service. All for selected students only. I did worked there every vacant or after class because we only need to work couple of hours or more not full time, I finish 1 month and waited for the money for weeks, I got it yesterday cash in our city hall and after that all I did was to eat in small eatery, went to submit resume in 2 fast foods for part time then went to store as well then got home, I didnt realized I lost the envelope until last night. I literally froze for like idk how long then I tried to remember what happened the whole day but I really dont know how the hell it wasnt on my bagggg. Im so stupid. God. God. I was worrying about my exam next week but I got it covered, then I lost the goddamn money for last payment tuition? I am so tired of every single emotion right now. I just want to vent this. I freaking lost something im relying for weeks now to pay that tuition. AAAAA