At best, I consider myself an intermediate lifter. Maybe. Anyways, what I did to go from a pathetic 170-ish guy at 6’1" to a current 240-ish was as follows:
First, I really took the time to find my “sweet spots” for all the main lifts. Meaning, I decided whether or not high-bar and close stance or low-bar and wide stance on squat worked most for me. Things like that. This meant that my workout was centered around progressing on the compound movements: Squat, Bench, Deadlift, and Press. I did Starting Strength for many months. I know some seem to look down on the program, but it worked for me.
Second, I moved on to a more advanced progression program when it became too taxing to try and increase weight in three big lifts a day. This was 5/3/1 for me. I stayed with this long enough to get my strength levels to a place that I was happy with before moving to a bodybuilding program.
Lastly, once I had figured out what type of training style worked for me, I chose a program that adhered to that style. For example, I have always preferred intensity over volume. I tend to agree that it is best to pick just a few exercises for each body-part and hammer the hell out of them. Quality over quantity. This lead me to adopting DC as my current training program. I had done massive amounts of research on it and found that it definitely suited my interests.
The way that I went about training could have been better, of course. However, it’s the journey, right? Focusing on the compound lifts taught me the value of simplicity in regards to the iron game. People try and make this shit rocket science when it isn’t. Just get in, do your thing, and make sure that by the time you leave the gym you know that you’ve used your time wisely.
Now, as far as nutrition goes, I admit that I was a bit lax at first. I just fucked around like many of us do, spinning my wheels, and going nowhere. Finally, once I realized that sacrifices needed to be made outside of the gym as much as in, I began to grow. I can’t tell you how many times I ate until feeling sick. My buddies joked around that I had to hibernate like a bear after eating, because I literally ate until it made me tired and I had to pass out for a bit. I have, for a long time, utilized milk in my growing endeavors. I love milk. I love what it does to the body. I did GOMAD for quite some time. I know people talk shit on GOMAD, but I just saw it as drinking a fuck-ton of milk to get that weight up.
Now, I have a bit more fat than I’d like, so I am tailoring my diet to handling that. I drink 1% now and stick to lean protein sources such as fish, chicken, etc. I’m not afraid to eat burgers every now and then, but I don’t make them the cornerstone of my diet. I use protein powder when I need to, but I don’t use it as a crutch. I take a multivitamin, fish oil, and that’s about it. I’m not sure what else to add, but I’m sure I’ll think of more later.