Some more advice:
- Get comfortable with open chords and switching between them quickly.
- You'll be able to play much longer once you've gotten some callouses on your fingers.
- Strumming is obviously easiest to start - work on different patterns, learn to strum in different time signatures.
- Knowing the notes of the strings and notes of the chords will help.
- Understanding that barre chords are just open chords using your finger as a capo will help.
- Play music you love. This will help you practice when you have a goal.
Once you have chords and basic patterns, start exploring:
Don't be afraid to go beyond strumming into finger picking or flat picking. If you go this route, start looking for songs with tablature.
Listen to lots of guitar music for inspiration and to hear different sounds and styles that you want to emulate. For example - slides, hammer ons/pull offs, tapping, harmonics, palm mutes, arpeggios. These techniques aren't all that difficult, but are part of a guitar's unique sound.
The guitarists I listened to in uni included Rik Emmit, Tommy Emmanuel, Leo Kottke, Don Ross, and Phil Keaggy. I couldn't get enough of any acoustic fingerstyle guitarist out there. With all the hours and money I spent at used CD shops, be happy that you now have a wealth of great music at your fingertips for free online.