Realistically, to start improving on guitar, you're going to need to set aside a bit of time to practice. Developing a daily routine is a good idea. Plan to spend at least 15 minutes daily practicing all you've learned will really help. At first, your fingers will be sore, but by playing daily, they'll toughen up, and in a short amount of time, they'll stop hurting. The following list should give you an idea of how to spend your practice time:
GuitarTricks.com has courses for beginners, intermediate, and advanced players. It is clear if you have never played guitar you can get started right away on this site. They start with the basic explanations of tuning and holding positions and build into various styles of playing and picking. As usual they work on country and blues first as these are often the easiest for a beginning student.
ANYBODY, OF EVERY ABILITY, CAN PLAY – Designed for every type of learner, ChordBuddy includes modifications that allow individuals of every ability to successfully learn a new instrument. Perfect for use in the music therapy, home, or school setting, ChordBuddy can help individuals learn to play the guitar flat or with two people at a time, making for what is an all-around therapeutic experience.