How much money you need to live on depends on where you live and what the cost of living is, and what sort of lifestyle you maintain. And with UC, it also depends on what your insurance covers, i.e., if you have to pay for a percentage of the cost of your UC meds vs. if you just have to deal with a copay. A website called www.sperlingsbestplaces.net breaks down the cost of living in just about every place.
To get a rough idea of what you need to make, look through the real estate ads and see what typical apartment rentals are in your area. Ask your parents what they are paying for their utilities (gas, electric, water). If they have a single family house you will pay less, but it will at least give you a ballpark figure. Notice when you are looking at the ads that some apartments monthly cost includes some or all utilities. Will you want cable TV? Cell phone AND land line or can you manage with just cell phone? How much will internet access be? Do you need it in your apartment or can you get it thru Starbucks or McDonalds or someplace? Try to figure out a realistic food budget. Plan for some meals out -- they add to your budget, but realistically, you won't be eating all meals in or brown bagging 100%. Don't forget about auto insurance, renters insurance (that's typically extremely cheap, but important).
If you can manage to live below your means and not run paycheck to paycheck you'll have a lot less stress, so budget in something, any amount, no matter how small, for savings. It'll add up fast if your religious about paying yourself first.
A single person can be self-supporting in most parts of the country for much less than 65K -- especially if you can get into a roommate situation. Check out Craigs list, explore what friends or friends-of-friends may be looking for a room mate.
Getting a job is a good thing, and it's a pretty good time of year to be doing so because a lot of places are going to be hiring for holiday help and if you're good they may keep you on. Don't let the UC or being on Remicade stop you. Because of the ADA accommodations MUST be made for you. For example, if you have a retail job you won't be held to fixed breaks for bathroom usage. You will probably need a note from your doctor explaining the condition and what reasonable accommodations would be. If you are working with the public make liberal use of hand sanitizer and frequent hand washing, keep your hands away from your face, expecially mouth and nose, and you should be okay.
I am self-employed, a dog groomer (if you like animals, grooming schools run about four months full time and you can make quite a bit more than your parents' "magic number").
Being a dog groomer I am exposed to lots of bizarre skin issues, poop, parasites, you name it .... I wash my hands frequently, keep them away from my face, and I haven't been ill in the year plus I have had Remicade every six weeks. I also haven't achieved a good remission, just a reasonable improvement. I have good days and bad. Some days you just have to force yourself to get up and do what you need to do.
Getting a job is not the end of the world. When you make your own way you have lots more choices and you won't have to owe it to your parents to listen to everything they say. My own daughter is 18 and struggling to make it and work. We're happy to be her safety net, provide a roof over head while she is trying to get on her feet, but she is working, paying many of her own expenses. Right now, for example, we're still helping her with insurance (health and car) and a few other things, but she pays for her own clothes, gas, cell phone, entertainment. We lent her some money for her car and she pays us a monthly payment. She is trying to put together some savings and intends to move out once she has three months living expenses saved. THAT is a more important number than an arbitrary income figure.
Diagnosed UC April 27, 2006; mild arthritis in lower back, dx'd May 2008; Osteopenia dx'd 6/08
9 Remicade infusions: 7/21/07; 8/18/07; 10/13/07; 12/15/97; 1/26/08; 3/8/08; 4/19/08; 5/24/08; 7/5/08; 8/15/08; Current meds & supplements: Lialda, 4 tabs in the morning; Xanax as needed (rarely); Tylenol Arthritis Formula or Tramadol as needed for arthritis pain; multivitamin w/folate; Culturelle; Fish oil capsules, calcium chews and/or Tums; Vitamin D; Past meds: Prednisone 4/06-4/08; Entocourt EC; Rowesa; Asacol; Colazal; Venofer (iron) injections Dec '07; Imuran (extremely bad reaction 2/07); Protonix;Lexipro