For the first it might be enough to check:

My account => Preferences => Real name

Please enter your real name in the second field, if not shown. Normally this should be enough and the forum should use then your real name instead of your user name, when posting.

For some older accounts it might be necessary, to change also the user name. If the forum continues to show your user name (like member ID or email), please take contact with __support@meta-health.net__ so that we make the change in the backend.