Hi Belin,
LazyCam is OK for what it does but it has it’s limitations and quirks (perhaps like all software) and is really not that suitable to use for engraving work.
Most of my CNC work is with laminate engraving and I use Vectric VCarvePro
http://www.vectric.com/WebSite/Vectric/vcp/vcp_index.htm which is extremely quick and easy to learn and use although it is perhaps not cheap to purchase. For general engraving work and for the price this software takes a lot of beating.
There are some free alternatives such as F-Engrave
http://home.comcast.net/~sskroch/Fengrave/fengrave.html which I have found to be excellent. This software is pretty versatile and has enabled me, from one extreme to the other, to engrave text down to 0.5mm height
http://www.machsupport.com/forum/index.php/topic,21525.msg150158.html#msg150158 as well as V-Carving 12mm deep into Teak (using different spindles for each task, of course).
There is perhaps no easy route to the learning process but my recommendation is start with a simple, basic project, get plenty of ‘hands-on’ experience and spend some time browsing the forum. Once you have mastered the basics you will be surprised at just how easy it all is.
Tweakie.