Welcome to the forum.

You might find at first that your results are not as good as they were with your plastic cheese grater, but stick with it things will improve. There is a long learning curve with this hobby but you will love shaving and look forward to it. Expect that the shaves will take much longer too so set that time aside.

The biggest thing that I have learned and wish that I knew it from the beginning is don't use any pressure. Before you begin your journey read up on what razor might suit you but make sure you buy it from a reputable dealer and most importantly make sure it is shave ready.

Spend some time in the beginners area on this forum it is full of really helpful advice.

+1 on everything that Cudarunner said too.

Take your time and enjoy. Porl.