First off the mind body connection is most important. Don't focus on not getting it focus on being healthy and don't worry.
Second. You need to alkalize your body, cut out preservatives, refined sugar and all artificial sweeteners. Meat does not cause cancer, but many meats have toxic chemicals in them.
Next Google "Budwig Diet" a diet by a German scientist that discovered a lack of omega oils was found in most cancer patients. And she discovered that when you combine flax seed oil with Quark or organic cottage cheese it make the surfer containing protein in it make the oil water soluble and assimilates into the body better. She cured many people but when American Doctors saw what she was doing then wanted no part of it because it could not be patented or turned into a high cost treatment.
Also visit PHkillscancer.com a guy that cured is own cancer by alkalizing his body with Baking Soda. This is not new even doctors have proven that this has benefits but for some reason the AMA keeps taking their licenses.
Also visit phoenixtears.ca a man that discovered High Concentrations of THC Hemp oil cures cancer of course the put him in jail.
Also lack of iodine in the diet due to the fact that bromine has replaced it in breads and the bromine displaces the iodine has also been links to cancer. I take lugol's iodine almost daily.
There is also the theory that viruses and mold are the causes of cancer and they stems from the body not being able to rid it self of them due to too many Heavy Metals in the body. Look of Zeolite, Chlorella, Cilantro, for heavy metal detox. Also adding coconut oil to your diet helps kill of both viruses and model and some people claime cured their cancers.
Good diet, no refined sugars, no artificial sweeteners and a fairly alkaline diet, exercise and not stressing are all good prevention for cancer. But I tell all of this every time to people that have cancer. Most people don't want to believe and want to trust their doctor and die. Most people only trust the Medical and Scientific Scams that are sold to them inspite of their poor success rates. Some people also claim any thing that works is a placebo well who cares if the person is health!
Also check out
http://nsp.teamasea.com I take it everyday this stuff is amazing. Not only for heath, athletic Performance, but also to prevent disease by helping the body work better.
http://www.energysportdrinks.com
And check out Yesitsamazing.com
And the B.S. about oral sex causing cancer is B.S. people have been having oral sex for as long as there have been people. If you body is able to rid it's self of viruses HPV and such will naturally be eliminated. Lecithin 2500mg taken daily puts Herpies 1 and maybe 2 as well as other viruses in remission. Also Sovereign colloidal Silver has also been known to help kill viruses. ALL VIRUSES CAN BE KILLED! There is also electrical treatments such as the ultimate Zapper
http://zap.intergate.ca/ that can kill viruses and pathogens in the body. I use zappers anytime I get a pimple and it's gone in 24 hours I have also used it on spider bites. But they can be used to kill pathogens in the blood also.
I hope this helps. I don't have the time to debate but just wanted to leave some info.
The Key To GooD Health is Making your Diet, Lifestyle And Beliefs work for you instead of against you as most people do.