Need Help Funding Very Expensive British Citizenship

Hello my name is Iwo and I am Polish. I live in UK since 2005, I study at University. From my small wages I was saving up money to change my citizenship from Polish to British which is very expensive (£1400) and also transport fee to London to the ceremony, I live in Scotland. 2 years ago my dear grandmother has passed away who also came to UK with me in 2005 and all the savings me and my mother who is a pensioner had were spent on the cost of her funeral. After many attempts I am not being able to put a side that amount of money and the up coming Brexit is filling me up with uncertainty about my future. I have well integrated into the community I live in but very high living costs don't allow on extra expenditures. Any donations even the smallest will be greatly appreciated.