This is an easy one.
If you haven't gained a single pound you simply are still not eating enough calories and all those supplements are worth f*** all. Supplements won't get you anywhere if you are in a calorie deficit or using a crap programme.
This is all that's wrong with lifting these days, people aren't getting anywhere so they look to see what new supplement they can take. People have managed to get big and strong for generations long before any of that stuff was invented. And all this "take so much whey 30 mins before this" or "drink this amount of casein protein exactly 18 minutes after that" stuff is all a load of bollocks.
Chuck all that crap in the bin and start spending your money on real wholesome food. Ditch the split and start training your whole body 3 times a week with compound movements (squat, deads, rows, chins, bench, military press etc) with a decent volume and the eating will take care of itself.
I don't know what half of that stuff you're taking even is. But you've proved it doesn't work.
I don't mean to sound rude, but it's really basic stuff. Lift heavy and eat lots of real food.