I fast regularly (sometimes I go like 3 days without eating) and eat very little to stay clean and to lose weight and also because I just forget to eat (down 50 lbs in a year with no exercise) and I would NOT recommend starting to fast before an event like cumunion. You have to work up to regular fasting like that to stay clean. I wouldn't even start a high fiber diet right now either, since going from low fiber (like the typical american diet) to high fiber can cause a lot of gas and discomfort and actually constipate you instead of cleaning you out. You can message me and I'll tell you some more if you want, but for right now stick to enemas.