Lovely,
Many supermarkets sell single aloe vera leaves now, about $3 each. They are very thick, large, long green "leaves" filled with aloe vera gel. My local supermarket chain does, whole foods does. Places like Home Depot sell small plants for about $4 or $5. Also, I will venture to say that if you stopped at a plant shop or store that sells the plants and explain that u r a college student with an injured bird and would like try aloe before you buy a plant, they would snap off a leave for free. Lots of people keep them as plants in homes and offices because they are so easy to care for and great ot have for burns and cuts. Ask around, email, post of FB or something and ask if someone has a leaf from an aloe plant. Snapping them off doesn't hurt the plant. That's what many people do anyway. Once you have a leave, you snap off a little piece, open it and scrape out the gel. Then put the rest of the leaf in the fridge and it will last a long time that way. One plant will last the rest of your life if you care for it. I can mail a leaf to you and it should hold up for a few days in the mail -- if you have a PO Box or some other non-revealing address, feel free to PM me if you want a leaf.
Your lovebirds are very cute and pretty. I'm very very glad you have them to love and care for. Obviously your aunt trusted you with her precious birdies because she knew they would mean alot to you and you would do your very best. Coming to this forum for advice is exactly the right thing to do in your situation. Don't let the posts that make you upset get to you. No one wants you to get upset. EVERYONE wants to get their guidance across to you in their own way.
After reading all your posts, my gut instinct is that you have a habitual plucker there. She stops plucking when she sees you and is ready to hop out of her cage. Sounds like plucking could well be related to boredom and nervousness from your absence. Also, it is unknown what goes on with the other birds and her while you are out. Obviouly you have to be out to classes and work. You've been given lots of great advice already. You could try leaving a distraction during the day, i.e. tv cartoons on low volume or no volume, some kind of audio for sure, i.e. mello radio music or an all talk show.
Another thing you mentioned the birdy being awake at 1am. Since you share a room with them, you are probably all on the same schedule and there might not be much that can change about that. But, it is good for you to know that a regular schedule can help too with birds energy and behavior, including picking, biting, etc. You probably have an erratic or hectic schedule when everythng is going on. So do your best to try to make everyday about the same for them in terms of lights on/window blinds open vs. lights off/sundown. If they are not sun up to sundown schedule, then try to leave them plenty of light all day, and later in day, start dimming near their cages, or start to cover their cages like half way (one side), then eventually the whole cage. It's good for them to have regularity. I know it may cramp your fun time with them, but you'll work it out. Like kids, they will have days where they are allowed to stay up late, lol.
Also, you could try a type of toy you never ever tried and see how that goes, like bells if she hasn't had them. You can go to the dollar store and get a set of plastic measuring spoons that come on a ring and hang it up in cage. If item can be used on food or in babies mouths, rule of thumb is that it is safe for a bird as long as it is't sharp, etc.
Lastly, if you would like help finding an organization that might be able to help you with vet / health care, let us know here. There may be a local rescue or organization that can offer free or sliding scale vet / medical care or even free exam and recommendation.
Keep up posted. If your plucker starts opening the skin, you'll have to move up the vet visit to right away. But she should get seen as soon as u can anyway.