SaltyTears,

The first days can be horrible... depending upon what you have been ingesting lately.
First, be sure to READ the whole booklet... I have links for both the PDF online, the online copy and how you can get a copy off Amazon.com for about 2 dollars on the bottom of my Master-Cleanse webpages. Read that booklet cover to cover first.
Maek sure you drink all 12 lemonades the first few days for sure. Make sure you drink the same amount of water, as well.
And consider, since you are overweight, and perhaps Sugar sensitive if not prediabetic - as I am - doing the Master-Cleanse with molasses instead of the maple syrup. There is less reaction with it, less Sugar let down afterwards - which means less fuzzy headedness, less moods, more energy steady for you to function.
And the other really important factor is focus... you need your head and body to be in synch totally. You need to be committed to doing this come waht may - because in my experience alot is going to come on out. Detoxing can be so rough. I found I needed to sleep so much more than usual.
If you don't like the lemonade with cayenne, the SWF (Salt-Water-Flush) and the herb tea - consider another form of cleansing... As Pepe has reassured us all - veggie juices and raw food will do this cleansing just as well. There are so many ways to cleanse and heal.. this is just one way.
Best,
LN