It is not wrong to want things. You just have to control what you want, try to be moderate in what you have and not waste too much. Too much attachment to this dunya brings us away from God, however that doesn’t mean we can’t be comfortable and enjoy the worldly blessings. One thing I do is if I buy something new, I give away something else. For example if you buy a shirt, give away an older shirt. That will make you always do something good.