Your first 4 dives were training dives and you weren't a 'certified diver' until you completed them. I have them in my log book, but I didn't start numbering my dives until my first post-cert dive. My log book also had a special section for the first 4 training dives.
And for my cave dives, my log book would look like this: 104 C-4, which means total dive number 104 cave dive number 4. That way I can keep up with my total number of cave dives as well.
And for my cave dives, my log book would look like this: 104 C-4, which means total dive number 104 cave dive number 4. That way I can keep up with my total number of cave dives as well.