Anxiety

Hi I know this isn’t necessarily related to school but I finished sixth form last year and used this loads and don’t know any other things like this that I can use.
I broke my leg over 7 weeks ago now had to have surgery and all that been off work since and have another few weeks off I work as a healthcare assistant at the hospital it’s a job for my gap year to get me experience. I really want to go back but I’m so nervous I don’t speak to many ppl at my work as I was fairly new before the injury and my boss has only reached out to me once and hasn’t discussed me coming back to work should I be concerned and is it my responsibility to arrange when I should go back or should she be asking me. I’m really nervous about going back as I feel like I just got over being a newbie and I’ll be back to being new again. I also feel useless because I’m not working and even when I do work I feel that it’s not enough as it’s 3 12 hr shifts a week and occasionally another 6 I feel like this isn’t enough but I don’t always want to do an extra shift in the same job as I find it can be boring I’m worried it isn’t for me and if anyone else has had any similar issues.