Ready for a new job...

I'm ready to leave my job. I like my job and I'm thankful I was giving the opportunity to be there but it would be nice to find a job where I can feel like I fit in. I don't feel like I fit in at my job and it sucks. I feel like I am not needed and that I am being used. In the almost year that I have been there, I have learned that my job is pretty much a one person job not a two person job and the lady I work with can pretty much do everything by herself. I believe the only reason I am there is for when she calls in, or takes a day off, or is on vacation. That's the only time I feel appreciated. I don't even work a full 40 hours a week so it makes me wonder if it is time for me to move on. I keep trying to find jobs to apply to and I have applied to a couple but so far no luck has come my way. I applied for a ob at my old company which I would love to go back to because I never wanted to leave in the first place. I applied to the job 2 months ago and so far haven't heard anything about it. Everyday I keep hoping I'll get a phone call or email but nothing after two months. The job is still posted so I don't know what is going on and I wish there was a way I could find out. I'm still praying everyday that the day will come that I hear something. I want that job so I can get out of the job I am in and I will be closer to school plus I can work for the company that I plan on working for when I graduate. It just sucks having to wait. I really hope, wish, and pray I can get that job and go somewhere and feel wanted.