Hardgainer Answers

I have recently joined a gym & have been working out for the past 4 weeks. My weight & height are 235 lbs & 6′2″ I have a larger then average body type from working in construction so the BMI is defiantly off a bit for me. I feel my ideal weight would be about two hundred. That said my question is as follows:
my workout consists of about 12 reps of heavy weight doing chest, arms, triceps, shoulders, biceps, & fly exercise. From there I go to the bike & bike for about 40 minutes, then do a second set of about the same weight, then I jog for about 40 minutes at 5 miles per hour & finish up with my third set. All in all I do this every other day & the routene takes about 3 hours to finish.
my question is, 1) when I am working out on the machines I see people just sitting on them, maybe doing 100 reps of a weight before moving on where as i only do about 12 will i still see gains?
and 2) its been 4 weeks & my weight has stayed basically the same however my intense workout schedule & now healthy eating should have lost at least a little in a month right?

I have recently joined a gym & have been working out for the past 4 weeks. My weight & height are 235 lbs & 6′2″ I have a larger then average body type from working in construction so the BMI is defiantly off a bit for me. I feel my ideal weight would be about two hundred. That said my question is as follows:
my workout consists of about 12 reps of heavy weight doing chest, arms, triceps, shoulders, biceps, & fly exercise. From there I go to the bike & bike for about 40 minutes, then do a second set of about the same weight, then I jog for about 40 minutes at 5 miles per hour & finish up with my third set. All in all I do this every other day & the routene takes about 3 hours to finish.
my question is, 1) when I am working out on the machines I see people just sitting on them, maybe doing 100 reps of a weight before moving on where as i only do about 12 will i still see gains?
and 2) its been 4 weeks & my weight has stayed basically the same however my intense workout schedule & now healthy eating should have lost at least a little in a month right?

I’m doing an hour & a half of weights for abs,biceps,triceps,shoulders & pecs 3 times a week.what’s the best supplements to take for fast & effective muscle growth?