i went on it a couple of years ago for about 3 months, i had earned $150 yes dollars wich was about £80 lol. but thats because i would not send rude pics. there was 2 guys i spoke to and they gave me small donations to talk to them bu they expected me to be on the site everyday, then after a while they thought they owned me and treated me differently, they asked me to do things and when i refused they said that i was selfish and that i did not care about them. so i decided to leave the site as i did not want this at all.
also you have to be active alot on the site otherwise they delete your account and the money that was in it, also you can not have any of the money until you have reached enough for the full procedure!!
Dont get me wrong there are lots of happy girls who have had free boob jobs from that site but it all depends on how far you are willing to go and how much time you have on your hands,
good luck hun with which ever way you decide, but me personaly i would save or get a loan.
xx