What's the most challenging thing you have ever achieved?

i had not any thing special till date but now i have challenging thing to do is to pass out ny tybsc exam with first class grade and i will trying to get this any how.

i think my getting a post graduate degree was the most challenging thing for me. i decided on a college that no one approved of but i stuck woith my decision. also the subject was tough. i had to work really hard, which i did and passed first class. it was touthg and equally rewarding. i oculd have opted for an easire subject and relaxed instead...

Ohh ..being a single,disabled mother..I had a bad pregnancy..because of my back..i was bed ridden for almost the whole time..then to have 3 days of labor.,and with another deteriorated disc that went..pushed untill he was stuck and then they decide to C section me!!! lol..Then he ws born with Sleep Aphnea the first 3 months he was born....and stopped breathing so many times and so many times i had to perform CPR on him..omg! it was horrible! And everytime i changed him..or bathes him..whatever i did,.,the pain in my back was so horendous that i didnt think i was gonna make it threw that day from the pain..well hes 4 yrs old now..and hes turned out to be a very smart,beautiful,loving child.,and though im not done by far..lol..i think i made it through the toughest times...well till hes a teenager! lol!!

After graduating college, I planned (together with a college buddy), organized, got funding for, and started a business from scratch. It was a monumental amount of work, especially since we had little or no experience. But somehow we managed to get bank financing, and an import company was born and provided some manner of livelihood (not great, by any means) for more than a decade. My business partner left after a few years, and I ended up running the business by myself for the final 5-6 years, eventually employing as many as 17 people. In the end, I closed it down because I no longer wanted to deal with the stress, and basically "being on call" around the clock. But I am certainly glad to have had the experience.