Struggling to cope with mental health and feel scared

Hello, in the last few months I’ve been struggling with lots of anxiety. Especially around work. At times I feel so anxious about going to work I just cry or will take sick days. I feel extremely guilty over this and feel like such a poor worker and feel like I’ve let people down. I myself feel work in the NHS as an allied health professional so the work is fairly physically, mentally and emotionally taxing. I’ve found that as the year has gone by my motivation for things has dropped massively and my positive outlook feels nonexistent. I’m so easily irritated, constantly on edge and overthinking that I feel exhausted. I feel so tired lately that it takes me ages to do basic things like leave the house on the weekends and genuinely have to reason with myself to get out or else I probably would stay inside the whole weekend. I’ve also relocated to the UK a year ago and it’s been a huge transition for me essentially starting over. I feel sad I’ve not made loads of friends but thankfully I’ve met a wonderful man who I live with and he supports me loads. Just feel totally worn down. Constantly trying to do things because I feel that’s what is expected of me but if I had it my way I’d just stay in bed and stay at home for ages. Sorry for this crazy ramble but I feel like I’ve lost a bit of myself. It scares me feeling so distant from the woman I once was. I don’t even know if there is something wrong with me or I’ve just made this all up and I’m a lazy person. Just feel weak and like I’m letting everyone down but most of all myself. I’m trying to access a GP appointment to try help me but it takes ages. Have taken a while to get a therapist but recently found one that I click with so that’s positive. I’ve joined a gym and I’m trying to go at least 3 times a week. Finally deleted IG because I think it makes me quite miserable. If anyone has been here and has advice please help me. I would be so grateful for anything.