I feel like I just need to vent soo...

Just some context - I live with my aunt because I'm still basically a full-time university student even though I do a few holiday jobs here and there... Additionally we've lived together for about 5 years now... And she knows I have a few medical conditions that I am not getting treatment for because she took me to get a check up about 3 years ago... Plus shit is expensive and I can't afford the list of medication I should be taking... I have OCD, ADHD, Clinical Depression - These are the relevant facts for this vent... (The other stuff not so much)...

Moving on...

We haven't had electricity since 06:00am (it's now 01:00pm)... We have a gas stove hub which is mostly useful for such occasions where our electricity is off... I practically live off of coffee but I was lucky enough to be up earlier than usual this morning and I made myself a jug off coffee... I usually do this because I sit at my desk working the whole day and it helps if I'm not constantly getting up to make coffee for myself... My ADHD makes it easy for me to lose track and get distracted so I try to minimise disruptions...

Also because of my ADHD if I'm not sitting and looking at something I forget that it's even there when I start something else... For instance... I usually have to boil the kettle twice since I don't usually stand in the kitchen and wait for it to finish (this happens 75% of the time)... But that doesn't bother me that much since the water can never over boil...

Whereas ... When our lights are out we usually use the stove... I've made coffee this way a few times before and 90% of the time the water over boils and messes the entire hub... Now because of my OCD I get even more irritated because I can't just clean where the water messed... I have to clean the entire hub and the couters and basically the entire kitchen...

Because of these factors and my clinical depression that gets affected... I choose to rather avoid such situations and outcomes... I have a very technical mind and I can usually easily assess an outcome from a decision I'm about to make... Living with my aunt I know what she is going to say before she says it depending on my responses... Almost 5 years living together and she STILL forces me into situations where there is no positive outcome for me...

Like today...

I have my jug of coffee with me while I'm working and our lights go out... I can't work so I just scroll through stuff on my phone or I read... Only two options I have really... My aunt comes to me asking me to make coffee... I'm not a selfish person so I offer her some from the jug (granted it's a little cold by this point - but coffee is good cold or hot)... She refuses because she wants hot coffee... She's bugging me because she wants me to make it...

Now my only options are...

1. Give in... I make coffee for her using the stove... Most likely outcome is my ultimate annoyance because the pot has boiled over and made a mess... I would be forced to clean it and the rest of the kitchen because of my OCD... And she'd get annoyed with me because I've gotten distracted with cleaning and haven't finished making her coffee...

2. Refuse... She gets annoyed with me and for the rest of the day she never stops complaining... She points out every little thing she does for me and later calls my mother to complain about my behaviour and how little respect I have... When I don't respond to any of this she begins to belittle me and my Clinical Depression is kicked into high gear crippling my ability to work...

Either way I'm not in a good situation and I am most likely to spiral into depression... So for my own sake it took an inbetween option...

Me: "I'll do it but you watch the pot. If it messes it's not my fault."
Her: "How can it not be your fault? You're the one making it."
Me: "You're the one who wants it. I don't care what you say it's your fault and I will not clean it. So either make it yourself or accept that it will be your fault if the pot boils over."

We argued about it for awhile... But am I in the wrong for wanting to avoid a situation like that? Am I the bad person for refusing responsibility and blaming her?

I mean we've been living together for nearly 5 years now and she still does this shit to me... Am I wrong for being irritated by it?

What would you have done?