Hardest thing I've ever done, eh?

Well, I don't think this applies since it wasn't something I sought to do on my own initiative, but I think the large majority of cases are just like that: They happen and you have to deal with it.

I took the responsibility of my entire household's bills at the age of eighteen years old(I'm twenty now). I have an absent father that disappeared with another woman, a very hardworking mother that had to give up her job to take care of my grandmother, who due to a particular health problem, couldn't walk nor do anything on her own. At the time, I worked 4 hours as an 'apprentice' in a company in my town and I was like, completely lost of what I'd do. My money was all spent on going out and having fun since my mother did have a fine job previously and could sustain the whole house on her own without difficult, however, this changed entirely when she had to call quits and focus on her mother.

Luckily, I was effectively hired by the same company and now I work full time, have a decent paycheck and I had to pretty much become the pillar of my family's stuff. I bring food on the table, pay 'em bills and carry on, saving what little rest I have for my own stuff. It's not something extraordinary, but it makes me feel quite proud of at least managing to return all my mother did for me, in a way or another.