How mature? What decade? Are you studying for a profession or just to get a degree or complete your education?
Youve probably heard it all before, but copy your OP out or soemthing similar and then you need to see.
1, Your tutor to explain the difficulties you are having- they already know for he ec, but I think this is serious.
2. Advisor at the SU.
3. Support services- if you use email then cc your tutor/ department in.
4. Your GP.
I'm not sure what support services can do for you. If the issue is you are suffering from depression, triggered by the bereavement, which in turn has triggered the eating disorder and a destructive phase, then that sounds a bit like meltdown. It is more important to deal with this than Uni and imo it doesnt sound like you cna recover and get it under control with just a few weeks off.
If it were me I would just suspend my studies and get myself stable again. The second and third years are going to be more stressful and you need to be in the right frame of mind. Its not really going to affect you academically until you start taking exams. If the support isnt ood enough then complain or move uni.
In your year off you could work on a strageu and coping routines to make yourself more robust. the first year will eb the least pressured, so the worst mistake you could make is to sumble into the second and third years with lots of unresolved issue and stresses, because that would make you even unhappier.
At some stage you need to stop beating yourself up (this really undermines you and makes things much worse, plus its self created), be self supportive and start dealing with things in baby steps, one at a time and one day at a time. Your expectations of yourself are too high.
If you havent dealt properly with your eating disorder then give he BEAT helpline a ring. See if they can guide you.
https://www.b-eat.co.uk/contact-usI forgot to add what you could really do with is a decent advocate who cna speak and assits on your behalf so you didnt find it so difficult. You could talk to http://www.mind.org.uk/about-us/contact-us/Mind or Beat might know of such a service.
I cant vouch for the quality of this service.http://www.voiceability.org/