I´ve being reading the docs and reverse enginiering the pirate example to figure it out how I´m supposed to add the blendshapes to my character(bare in mind I´m not a TD), but it has a lot of scripting and custom stuff, does anybody know where I can find a good entry level tutorial?

This is how you add blendshapes to the mesh.
https://www.sidefx.com/docs/houdini/character/kinefx/blendshapes.html [www.sidefx.com]

This is the standard way to add blendshapes to a character for kinefx and Apex.
In the apex rig use the blendshape component,
https://www.sidefx.com/docs/houdini//character/kinefx/rig_components/blendshape.html [www.sidefx.com]
it will automatically pick up the blendshapes from the mesh and create sliders for them in the viewport.