How can I learn guitar?

first of all no-one learns to play any instament overnight it will take a lot of time and patiance, when I started to learn I found that I couldnt reach some of the strings to play a chord I found out that excersising your fingers helps with this, u should buy a pair of those steel balls that jangle or somthing similar and start sort of rolling them round in the palm of your hand using your fingertips this will help to excercise the muscles in and between your fingers,

next you need to break in your fingertips dont worry it isnt really painful basically as u start to play chords and run your fingers up and down the strings ect u may notice the tips of your fingers become sore this is normal and as result the tips of your fingers become a little harder this makes playing a lot easyer

I suggest you learn to read tablature (tab) music as its real easy to understand and find some simple songs to play then its just practice practice practice

need any more info on tabs or help understanding them just message me

good luck!