It’s is kinda like learning to change a tire.
Once you do it you will say: "that was easy.
Just time consuming.
These links can get you started:
http://1wayswim.com/blog/2013/4/7/how-to-nuke-and-pave-os-x
http://veganswithtypewriters.net/blog/2013/10/25/nuke-and-pave-with-mavericks/
BTW
One added benefit of nuke and pave is yer 'puter will ‘feel’ like a brand new ax.
‘Zippier’ and faster (for a while)
Good Luck!
{‘-’}