If you have really only begun to play the guitar, where could you be after one week of practise? The fingers will still feel very awkward – they will not yet have gained the muscle memory for them to go into place automatically. You will, with concentration, be able to get them into postition, although you will probably be touching other strings. When you strum downwards, the sound may be not yet what you would like it to be! Your fingers may be sore! If this is where you are – well done! After one week, this is exactly what I would expect!