Theory can be boring for a begginer, basic exercises too. Usualy what a begginer wants is fast progression and the best way to achive that is simply through learnings easyer rock band songs. AC/DC is great example and learning cool riffs like some easy stuff by Metallica, Thunderstruck intro, Crazy Train intro riff... I think that it´s very important for futher inspiration.

For ex. I always wanted to play solos and I remember how proud I was over my self and how much inspiration I got after learning Ain´t It Fun intro solo (Slash). Sweet child of mine was also a ten pointer no to mention when I began to master Thunderstruck intro riff.