I've raised £4000 to Give 8 year old Thomas the stability and security he needs - unfortunately this includes taking Lola & Tom to the consulate in London

In December 2018, less than two weeks before Christmas, my husband Ross (Lola and Thomas’s father) died of a brain tumour.
Ross's condition was diagnosed when our son was just 5 days old and so Thomas never knew his father as a fit and healthy man like most children do.
As Thomas grew up, his father grew sicker and much of my attention was diverted to looking after Ross.
Thomas is only eight years old and while having to come to terms with the loss of his father, he also faces an unknown future with Brexit looming because I am an EU National but he and his sister Lola (17) are British like their father - I could be made to leave the country and what then for my children? Who would look after our son?
I know that you will understand I now HAVE to give Thomas the devotion and stability he clearly needs - and deserves - and so I must seek British Nationality in order to make sure I do not have to leave the country - his life is here and his friends are here - he is Scottish through and through
It is Thomas' time to be the centre of my world and of my attention.
Becoming a British citizen will cost around £3500 in fees and travel (to Aberdeen and Glasgow). For example – finger printing costs £125 and I have to get there; the basic application costs £1,400 and then there’s the Life in Britain test (in Glasgow) another £50, the Residence card application £65 and a seemingly endless amount of expensive bureaucracy that just mounts up and up and up
Please help me to raise this money and give Thomas the security he needs.