Nervous about not finding another job that I want.

So I work at a elementary school as an interventionist/tutor.Now the job consist of m working with Pre kindergarten students,the teacher and paraprofessional.The program only last a year until I reapply again.One of my coaches ask me am I going to serve another year and I told her no.The reason why I said no is because during our meetings usually old members and new members would have to talk. As a introvert I don't like that.So now here I am only have a few months on the job worrying about if I will get another job.I've found a few jobs as a teacher assistant and a job placement specialist that I have the qualifications for... just that I am nervous that I might not get a job or the job that I am looking for.