what you will find as you gain experience is that the principles of modelling/sculpting are the same whatever tool (such as blender or maya) you chose to use…
for rendering blender internal is being phased out in 2.8 but cycles remains…
as stated by Julian there is some rearranging (blender coming into alignment with the rest of the software world) of where the tools are located and the default condition of left click select…
by all means jump right in the water is fine…
hope you find this helpful
