Hi @realitymaster! I hope you are having a good day. Now let's get back to your question:

Here you can see even I didn't complete all these. The thing is tracked intro from the #introduceyourself tag as shown here:

So when I was a newbie, I didn't even know to use the #introduceyourself tag for an introduction post.
In short: It is an activity designed to guide people as the name says "TOUR".
Now that you understand how it works or its purpose, I will help you complete your task by commenting on your post. If I really like it, I might request a curation on your introduction post to the community account or simply curate myself.
Hive is a little bit complex ecosystem for newbies, I suggest you use discord and join groups like HiveLearners, TheTerminal, etc.
Here are links for HL, TT discords:
HL: https://discord.gg/TM6PC9JGJJ
TT: https://discord.gg/XZGPGpz
It's also easier to learn and grow with your country's discord groups, So here you can join Brits too:
Great info thanks. I've joined the Hive Learners but the TheTerminal looks, erm, terminal. It only had a few posts over a year old and they were about buying Steem or something so I left again.