Hi 21 and counting, welcome to the forums.
I can relate a lot to your situation and just want to let you know you are not alone.
I started Uni last year studying Engineering, also on a scholarship (the only way I could afford it). My real passion lied with animals, but I chose Engineering because my grades were so good I felt I 'should' do something harder. A few weeks in, my mental health declined, I suffered from depression for most of the year, and developed an eating disorder. Like you, I struggled with the engineering workload, and the pressure to do well to keep my scholarship. Despite the stress, I did well academically, BUT this came a huge cost to my health, with me being admitted to hospital & missing all of semester 1 this year.
By the end of last year, I decided I didn't want to do Engineering, I wanted to change to Zoology, but I knew if I did I would lose my scholarship. But I realised I would rather spend my time pursuing a career that I enjoy, that will give me purpose in my life, rather than one that I felt I 'should' do because I'm good at maths. So as hard as it was, I changed my majors and lost my scholarship, and now I'm under a bit more financial pressure, but I still feel good about my decision.
I understand that without your scholarship you will not be able to study. But you also sound very tired and worn down, and I was told that your health should come before anything. Have you considered taking some time off from uni? Will your course & scholarship allow this? If this is an option for you, you could work to save some money, and spend some time working out if your chosen career path will give you enjoyment and purpose in life. Or you could talk to the support services available at the university, maybe get some extensions on your assignments if this is possible.
I don't doubt that you have the ability to complete your course, but from what you have written you seem worn out and I feel something needs to change, so that your health does not suffer. I can see how big of a deal this is for you, you are not overreacting, but please do not give up on your studying if it truly is your dream, there will be a way around these hurdles. If you do decide that uni is not for you and you want to try something completely different, then that is ok too. Remember to take one day at a time and look after yourself.
I'm glad you posted on here, I look forward to hearing back from you.