I job has become a negative environment,that I cried on my way into work, and I don’t know what to do?

I don’t know what to do… I started working for this company a year ago. Through a temp agency, as a temp to perm position. I was hired on at x amount, for three days a week, and the promise of full time hours, benefits, permanent status, and a certain amount of pay. (more than the starting pay). I was told after the 1st of the year I would be hired on as a permanent employee. I’ve received positive feedback about my work performance. I just finished a big project designing a catalog for them. There are mistakes that are made, but without the proper equipment, support and with unrealistic deadlines, I think I’m doing well. I’m going to collect all the positive feedback I’ve received from the sales reps from emails to use for my portfolio. I’ve been able to create an online intranet for the national team of sales reps, FOR FREE! so that we can communicate, keep all up to date documents there..stuff. I headed the project of finding a professional photographer for the catalog. I was able to come in under half of the budget for photography. The images are wonderful. They haven’t updated their photography in twenty years. Before we hired the photographer, I was taking product photography, (and I still do for some a product here or there) I brought in my OWN equipment, and took some pretty decent shots. The ones in a product launch brochure I took 80% of the images, and it looked good. 100% better than what they had going on. They liked in then, but when it came time to discuss the catalog, suddenly my work was horrible, no good, etc. Anyways.. I worked hard, and many people think it’s the best catalog in 20 years… but there is no recognition, Just more complaints. Then there is my boss. He has a job he doesn’t want, and is not qualified to be in. He was a salesmen, and he even admitted to me he wishes he wasn’t the director of sales. He’s unorganized, hostile aggressive, quick to push blame. He tells me to do something, then changes his mind, forgets he changes his mind. All the other employees complain about the same thing. One employees keeps a folder of all the stupid emails that come from him. He’s very confusing. He bitched me out for twenty minutes and even said what is the point of having me here, when he asked why I didn’t do something. well because when I asked him to verify the information was correct, (via email) he responded he already took care of it. Okay so I didn’t do it. THEN the next day he asked me if I did it, I said no you told me not to. Then he starts jumping up and down that I didn’t do it. I looked at the email while he was bitching at me, it was then I realized that in his email he was being sarcastic, hostile, rude and unclear. He was giving me attitude about asking him to verify the information, after he just told me to verify the information with him. Then I got the corporate on my back. I was working late, and I would come in a few minutes late. because I was told "Hey as long as your work your 8 hours that’s fine"
then someone complained that I was here by myself without my direct supervisor,( I was here with a supervisor who didn’t mind) so then I got my hours restricted to exactly 8-5pm, at 5pm I must quickly exit the building PROMPTLY. I was told any overtime or different hours must be pre approved. Well when Good Friday rolled around, it was a holiday, and since I’m STILL a temp, I don’t get paid for Holidays. I asked if I could work some extra hours during the week, to make up for the lost hours. It was denied. I could only work during the 8-5, and a lunch from 12-1. After I was just told, I could work different hours, as long as it was pre-approved.There are several other examples I’m a single mom. I’m working at the same pay as I stared a year ago. I need a vacation, just a couple of days off.I need health care, sicks days,,, the pay that I was supposed to be getting, that they promised. When ask about this, they said oh well the new company that bought us out, is not hiring right now… But shouldn’t they honor the previous agreements? Then they tell me it’s not a full time position. Okay well why have I been working overtime for two months for the catalog?
I’ve offered to just freelance for them. Okay then let me work from home. I can come in two day a week or as needed. I have a smart phone with internet and email, I have BETTER equipment at home, with more up to date software. I can also access the central server from home as well. I am told that’s not how we do things around here. They are showing me that they do not care about me, my future, my familly how this affects me. I see no future with this company. When I ask about when WILL I be hired, I’m told nothing. If I don’t like it I can leave any find another job (which I am)
I feel that I was lied to, betrayed, mislead. Like I wasted a year of my life with this company. I don’t know ho

Just.

Quit.