Loads of good advice there from SJM, I have been playing since the 60's ( yes I am old ) and I cannot add much to that
My Father bought my first guitar but it was a cheap one, he probably thought it was just a passing phase, everyone wanted to be in a group in the UK in the 60's.
I bet a lot of people gave up with cheap guitars where the strings are miles above the neck, it hurts your fingers and makes chords almost impossible but luckily I had friends who encouraged me.
I got a Saturday job in a butchers shop ( I was 14 ) and after a while bought a Teisco guitar which many people in the UK started on and suddenly it was much easier !
I also bought tuning pipes of course, we did not have electronic ones back then.
The only advice after that is practise and practise, it is more fun if you have somebody to practise with.
The Squier guitar is pretty good for learning on, these days I have a Fender Jazz bass like Tomomi started with and a Fender Telecaster but it took me many years to be able to afford them.
Like Tomomi I thought Bass would be easier as it only has four strings
So dont give up, I had years of fun in local groups and I still play now but I blew my one chance of fame, I had know Gary Brooker of Procol Harum fame from school and he asked if I wanted to join his new group and I said no, you will never get anywhere with a stupid name like that....*sigh*
Like most people here I also love Japanese groups but probably my favourite for skill and music will always be X Japan, listen to some of their stuff....oh and SCANDAL of course