I don't see any way to list only my posts. Thank you
After logging yourself into the forum, simply either do one of the following:
Click on the bell icon to see all notifications and you will see the box on the left of the screen which has 'forum posts' in it;
Click on the grey head logo and choose 'My Profile' from the dropdown list, then you will see your own forum profile and you will again have the box on the left of your screen which has 'forum posts' in it.