As Jamesman said, start with scales, work on open chords, and work with a metranome. Commit to at least an hour of practice a day. I know everyone wants to do it on their own, but the best thing you can do is get a teacher, and the sooner the better. You don't want to develop bad habits early on that will make it harder to progress.
If playing scales and chords bores you (like it did with me), pick a song you want to learn and work on a the individual riffs it after working on technique. Stick with a relatively easy song you know, minus any solos. The first songs I worked on were "Iron Man", "War Pigs", "Smoke on the Water", and "Red Barchetta".
I'll say it again because it's important: GET A TEACHER. Don't be prideful, they know how to work through slumps and are a good investment.