Day 5 for first timer -am a bit worried about staying the course...any suggestions

Hi, this is my first cleanse and I was aiming for 10 days..but am starting to get cold feet. I'm on day 5 and am finding that I don't have a lot of energy....my skin is breaking out and I am cold all the time. It was 75 degrees yesterday and I had the heater on in my car! I'm following the cleanse and am in the groove although after reading a few entries today on the blog...I don't think I am putting enough cayenne in my drinks..I"ve just been shaking a bit in each drink..but some of you are putting full teaspoons in each drink. Wow! Can anyone confirm for me that this feeling of being cold all the time (and I feel like I"m actually getting a cold)...is actually good for me and that I'm not harming myself or my stomach. I really do want to go the full 10 days..but am a bit nervous since I am doing this alone and all that I have learned so far about it has come from the interne and from you guys on the blog (thanks so much by the way!) I have ordered the book..but they are out of stock..so by the time I get it (in 2 weeks!) I will have finished my cleanse! Thanks again for all your great help and advice! You guys (and gals) are very inspirational......