I have been going to the gym for almost 3 months now, focusing on gaining size. I have been going 5 nights per week (Sunday, Monday, Wednesday, Thursday, Friday) and have noticed good gains, especially in my arms, chest, back and legs. I have gained roughly 4kg, bringing me to 70kg (154 pounds).
I haven't made major changes to what I eat, though I have been making the effort to have breakfast every day (previously didn't) and have invested heavily in high quality proteins such as Utilmate ISO Mass Xtreme Gainer. With that said, I do get at least a large serving of vegetables per day and don't eat anything obviously bad (like fast food, chips, chocolates, etc).
I also haven't done much cardio, because from what I've read or heard that will reduce my gains.
I'm putting all that I can into my goal which is to get quite big and then next year this time shred down. I want to go as far as I possibly can to gain quickly and effectively, so I've thought about going to the gym twice per day now. What I have realized though is I don't know what I should do in the mornings; whether it's some type of pure strength building workouts (like cross-fit style aimed purely at getting stronger), cardio and core, or just more weight lifting.
The latter seems most appealing for my goal, but I'm not confident that lifting weights twice per day will be beneficial. I'm also finding it hard to include a morning weight session in my weekly routine without getting the feeling that I'm just going to wear myself out for that night, or the next day.
Pure strength training sounds more appealing because I figure that will lead to me being able to lift heavier and thus gain more quickly, but I'm not sure if that's how that works either. A lot of the strength training stuff also seems quite cardio heavy and again I don't want to take away from my gains.
Is it worthwhile going to the gym twice per day, or even just going in the morning two or three times per week? If so, what can I do there to best compliment my goal of getting big? I was also wondering if I could even just do cardio and core (to get abs as well) without affecting my gains too much, considering I will still be doing those weight sessions as per current 5 times each week.