I downloaded a secret diary app on my iPhone. If I write in it everyday will it take up much space?

So far I have 50 gigabytes and I also constantly download new music i hear on the radio and like.

I'm going to write about how much of a freak I'm, boys never ask me out, I'm the biggest freak in my year, that I'm a flat chested 16 year oldand how boring I'm, my dreams will never come true and how I'm flunking in maths and such.

So anyway do you think writing in it for the rest of school (I graduate in 3 years) won't take up much space on my phone?

I wouldn't get a real book diary I don't trust them even if there's a lock on it I had one once and my idiot friend unlocked it with a bobby pin

No, it will not take up much space on your phone.