Is it better to split up workout

Is it better to try and get it all in one session, or is it better to break different exercises into different sessions ?

This has been discused many times already. It should fit in to your daily routine. If you can do it all in one go then go ahead. If privacy does not permit it, then split it. Over long periods of time, I believe that pliting routines are more intense because your dick is stressed longer than if you do it in one go.