After adding you text in blender (shift+A / text), you have to look on the right panels and choose the "Fonts" (F) menu as below.
The "geometry" part of this menu allows you to give a better look. I use mainly Bevel, Depth and Resolution.
Last, for having the text along a circle, you have to add first a Bezier Circle (Shift+A / Curve / Circle) and pick that circle on the drop down list of "Text on curve" (or use the picker to select the curve) in the "Font" part, just below the font editor.
I think you will then find your way to adjust you text playing with the cursor.
Hope it will help a little bit