Hello and welcome! I have to agree with those who have said 100 pounds in 6 months is not realistic. In fact, it is likely dangerous. The first ones will probably fall off really quickly but then when the plateaus start it can be discouraging. I wish you all the best; just don't want to see you set yourself up for what you will perceive as failure when in fact it can be very successful.
First major goal met 12/7/12. Next major goal ONEderland!