hello and welcome!
100 lds is some number but you can surely make it!!!
i am a very big fan of water fasting, and this is the most rapid way to loose weight.
but as rapid, it is tough sometimes....your body will be dotoxying very quickly and extremely sometimes, which will make you feel very tired or moody and then this will let place to a deep smile and inner joy...:-)
if you feel strong enough to start a long water fast, it would be good to do it under the supevision of a specialist, a naturopath for example..
And this if you could allow yourself some rest.
If not, and what maybe i'd say would fit you best, would be to start a juice diet(by the way, if you areater fasting, and having juices, this won't be a Water Fast anymore, but a juice one :-)))for, this, a much more unlimited period...
you could fast on juices for a long time....like 40/60days easy..well, i don't say this would be easy but meant with no problems for your health.
if you've been used to over eating, i'd not advice you at all to do some eod fasting, like few days on juices and few days on water as i'm preety sure after 2 days on water, if you go for juices,your body will want more and more and the risk to jump on all food you'll find is right here then..:-)
just my opinion...
but be sure there's a solution in fasting for you too ,this is certain!
i guess it depend on your life style, job and so, but if i were you, i'd start with some 2/3 weeks fasting, maybe 2 to start, and go for raw food after, are you vegetarian?
here is my just personnal opinion..
i wish you looots of success, and patience, wisdom and lots of love and light