You should always be learning. The fitness industry is always changing, especially with digital media giving it out anytime.
My favorite muscle to train is TRICEPS! Always has been my stongest muscle group as well.
Your body considers alcohol a toxin and will basically stop trying to digest food you ate to get rid of the alcohol and this can cause the food you ate throughout the day to be stored as fat.
Most people are just fat and because most bodybuilders juice, they can get away with eating what they want and just monitoring calories. It's a horrible misconception and often sends people down a path of fat gain that might ruin their motivation and drive. Fat cells never go away once created.
I don't think it's ok to judge others and put people down. However, it should be ok to be concerned about the health of someone which could leader to major problems in their future.
People love learning new things and you need to understand they want to learn it as easy as possible.
The biggest mistake I see people make is they are not on the right program. You should be circuit training and performing cardio 4-6 days a week (depending on time).
My motivation was I wanted to look like my favorite super heroes when I was a kid. Pretty cheesy, but that is what got me started.
For me, my core focus has always been to help others so what drives me to keep doing this is the fact that I can continue to learn to coach others such as yourself. You might not be a fitness trainer, or maybe you are, but you need to find that CORE reason that will keep you going forever.
Having a CORE main focus is the key to being able to stay determined. Most people only set small goals and when they accomplish them. . . it's hard to stay on track as they are not trying to achieve anything else.
Try to stick to free weights as much as possible as they work the stabilizers as well as the main muscles being targeted!
When I first started lifting I wanted to be a Super Hero. . But that was my motivation. I was huge into comics at a very young age and nothing made me feel better than helping people. So I wanted to build muscle to be like Superman, Captain America, Wolverine, etc.