SQL & PL/SQL

Hello,

I have a package with multiple stored procedures and functions in it that refer to each other. I also have a main() procedure that basically does a ton of different calculations, and I divided the procedure into multiple BEGIN...END blocks to easily identify bugs and debug using exception handlers. My question is, is there a way to create some kind of a "kill" procedure/command that would kill the entire package's process if ANY errors occur?

Basically the program needs to stop as soon as it finds an error, and it's not doing that now.