Agree with most of what has been said here, at this stage of your journey (actually I believe that at any stage of experience, even for an advanced player) learning songs should be secondary to learning about the instrument and and getting familiar with the fingerboard. Scales, arpeggios, etc will help with that. My focus would be on technique and basic music knowledge at this point, not theory. As others have said, learn to read music, not rely on tab. If you can't read at all, get the Ed Friedland Bass Method (on AMazon) and work through it a page at a time. Its very methodical and well get you learning how to read. Not being able to read musical notation closes off alot of options for learning as you progress.