Herbal Medicine for Weight Lost

In my goal to lose weight, I've been drinking Maggi - a herbal medicine that was recommended to me by my gay friend GK who was able to lose 20 lbs of his weight. Since I started drinking that medicine, I've been having palpitations and dizziness. I was supposed to enroll myself in a gym but I feel that my schedule won't allow me to spare at least an hour for work out as I promise myself to post at least one article a day for my blogs. I know I
need to stop working out instead of relying on those medicines that promises immediate weight lost but when I'm at home, instead of working out, most often than not - you'll gonna see me in front of the computer, watching free movies on the net or playing Casinos online. I really wish I can have the will and the perseverance to lose weight this time.