This genuinely made me laugh a bit.
OP - I’ve not gotten 10 posts into the thread and this is the best advice I think you need. I can see you start talking about professional’s below. But you are not a professional. So don’t try and do what they do. Just think about the emotional fatigue. Even if you have the physical strength to keep going - getting in the mind set for ANOTHER set after you’ve been working out for almost 3h. You’re going to drop off. Quality over quantity mate.
As and FYI - my work out take 90min. And they are a long. My work out have never been this long.To get me through I eat in the first 15mins. A high carb / high sugar food. A flap jack or banana bread. This helps keep me going. This and hydration. I can not stress how much hydration will catch you out.
Also full body work out tyoically 1 or 2 exercises per muscle group. If you like full body 3 days a week:
EDIT - I’ve just read through some of your replies to some of the guys on here. I wish I’d not have commented. I typically do not reply to / try and help people that are being rude. But as it is up now - I guess I’ll leave it.