blog everyday?

Some time ago when i first started to blog i thought of writing everyday without fail...but in reality, i failed to do that....ended up i write only when i feel like writing..spontaneous writing lol...cos one of my friend told me that she managed to write diary everyday during her 4 years in university, no matter how busy or how tired she was...cos she feel university is something where it won't repeat again, only once in your life...and so she wrote, everyday! well i don't have her determination...xP