Producing muscle gains never comes easy. Performing an arbitrary number of repetitions may produce some results, but never along the same order is pushing your muscles to 100% failure. Growth literally must be forced!
Consuming fats doesn't make you fat. Consuming calories beyond your maintenance and growth requirements makes you fat. Fats and cholesterol are essential in the production of all hormones- including hormones that support muscle gain and fat loss.
"Years ago I was told by specialists that due to my orthopedic problems and other health issues, that I would never be able to lift heavy weights or even become an athlete. I didn't accept their reality- I went and made my own!"