Thanks
You should post in block forum. otherwise: How to create a block from scratch. otherwise: why not use the people block?
https://moodle.org/plugins/view/block_userinfo
https://moodle.org/plugins/view/block_mooprofile
There are already quite a few blocks which show information from the user profile, such as the two above. If these don't do exactly what you want, then at least they could form the starting point for your own adaptation.