Ignore that and read these 'non-secrets':
Training should be challenging. You don't have to destroy yourself with every session but to bring about physical change you need to give your body a reason to transform. Being uncomfortable is a good thing both physically and mentally.
Realise that most people in good shape are prepared to go through some form of discomfort and deprivation. Get used to this and you'll stick with it long-term. In regards to the deprivation, I'm not simply talking about skipping junk food. I'm talking about getting to bed on time, missing events so you can train instead, having less downtime in front of the TV so you can do some mobility work, or to prep food for the next day. I've missed social events to train instead. If you want something then you've got to be prepared to go without.
There is no magic pill when it comes to nutrition. Introducing a "superfood" will not transform your life, nor will eating something unhealthy ruin all your progress. Everything in moderation is key but this is hard to sell. The press would find it difficult to write a story about this and instead they latch on to a specific subject. One week butter is bad, the next week it will solve all your problems. Eat natural foods 80% of the time and you'll do well!
Stop moaning. I'm like everyone. I moan about my genetics. The only person that can change that is me. Stop moaning and get working.
A good level of strength and fitness isn't built instantly. Unless you are that 1% who are naturally amazing then it's going to take time and patience. I've been training pretty much all my life and I still learn things about my body on a daily basis.
Everyone is an individual. What works for you won't work for me. Get sound advice but find your own way. Don't spend more hours reading about training than actually training. That's just you looking for a secret!
Enjoy the journey!