It's recommended to split it, some people get really bad shakes from clen especially if they do it all at once.
Really depends on how powerful the clen you have is, also everyone reacts differently to certain compounds.
If you're finding it hard to beat the sugar cravings a good alternative to help is healthy dark chocolate, nuts, apricots, prunes, banana crisps, apple chips etc.
Definitely take the time to recover in between cycles brother, even if well conditioned it's never good for your liver to frequently be using gear with little recovery time.