Good news! I was able to obtain not one but three new boxes for my temporary move out of my accommodation. My grandparents had some spare suitcases that they have kindly given to me. My belongings here will take up less room at my mother's house as a result, in addition to being easier to transport.
One of my uncles will be coming on Friday to help me move the majority of my items but I'll still be in my accommodation until next weekend.