Fresher in Logistics and Supply Chain Management to start a career in SAP , where to start?

I am a diploma holder from CILT UK in Lgistics and supply chain Management , i am a fresher and wanted to learn and train SAP ,an institute recommended me to take SAP S/4HANA simple logistics, but as a beginner can i go for it? if not where can i start? which module will be best for me? and were can i get best training and certification?

I request you to guide me to choose the right step

your faithfully

Asim