I need help with my acoustic guitar!!?

for christmas I got myself an acoustic guitar, It's not very in tune at the minute, im hoping to buy an electric tuner from somewhere like Argos. I'm a beginner at guitaring, so i wouldn't have much knowledge, but my guitar sounds really rubbish! it's a make that hardly anybodys heard of, 'PARROT', and it was made in china. It doesn't say the name on the head or anything, theres just a sticker actually inside the guitar. Even though it's out of tune, when i play chords, they all sound exactly the same! and when I strum, it sounds really loud and very weird, asif you can hear each individual string, not so it flows into one (which I want). Can you suggest what to do? Shall I just wait and tune it, and see how that sounds? or do you think theres something wrong with the strings? bearing in mind, the strings look quite thin to me. Thanks,