Hi Albert,

To hear your electric guitar with headphones on and a tutorial running, you will need an interface such as the Scarlet Solo. 

However, the guitar is going to be raw. Meaning your only tone options will be on the guitar itself.

When I am working at my desk and using headphones, I use a program on my PC called Amplitube, which gives me various amp models and effects pedals to use. You don't need it,

but having it makes things more interesting than just a straight guitar feed. 

Bill