Supplement schedule help

Hi
I have a month right now during which I aim to gain weight, I lift heavy, eat a tonne of food and drink a gallon of milk a day.
I also started a new PE-schedule and upgraded my supplement stack.
I need some help with how much and when to take the supplements though

Right now it looks like this:

Morning
If I lift in the morning:
200mg Caffieine
1500mg l-arginin, empty stomach

Always, with breakfast:
~6g creatine monohydrate
100mg ginseng (8mg ginsenosides)
multivitamin
3000mg omega 3 (540mg EPA, 360mg DHA)
1500mg l-arginin

I don’t take l-arginin twice, I take it pre-workout if I lift and I take it with breakfast if I dont.

Lunch:
3000mg omega 3 (540mg EPA, 360mg DHA)
20mg zinc (I get another 10mg with the multivitamin)

Dinner:
Nothing

Pre-workout:
200mg caffeine
~5g beta-alanine

Post-workout
whey proteine
6g creatine monohydrate
nettle powder (got this from my girlfriend, she said it would help with general alertness, it has a fair amount of antioxidants it seems)
1500mg l-arginine

The caffieine, creatine, whey and beta-alanine are for the gym
omega 3, multivitamin explains themselves I think
zinc, l-arginine, ginseng for the PE
nettle powder for good measure

This is it.
What I wonder is, should I move anything? Take more or less of for example the l-arginine?
Does anything work better on an empty or full stomach as opposed to how I take it now?

I’m looking forward to any tips! Thank you