Need some advice please

I'm not sure if this is the correct place to post this but I'm just looking for some advice really. Over the past week or so I've been feeling really down, including having thoughts of ending my life which I don't want to do but I feel as though I'm a bad mum and I'm a bad friend. I was doing okay when I thought I had people in my corner.

I thought I had made some friends at work but I don't know if it's all in my head or not but now I feel as though they don't like me. I recently opened up about myself to some of the people at work who I thought were my friends but now I feel as though that's made them change how they act around me which is probably really silly, I don't know. I just don't know what to do, if I should just leave it and hope it was all in my head or ask them about it and find out for sure if it is? Please help because I feel like I need some good friends in my life and due to lockdown my work is like my only social life (I'm a care worker)