I'm feeling really low. I feel like I don't handle stress very well and that leads to me being snappy and visibly stressed. I'm embarrassed and ashamed of being like this but no matter how hard I try I don't seem to be able to keep a lid on it all the time. It it pops up in different ways, like when we were opening xmas presents it stressed me out that DH was handing presents out willy nilly to open - I wanted the pleasure of giving the presents I'd bought to people myself and watching them open them and I snapped at him to stop. I've had feedback at work that when i handle high pressure situations it is obvious that I am stressed (maybe the fact i hear the problem and send messages straight away without thinking them through) and that rattles junior staff. I have 2 DC who are 4 and 1 and so noisy and messy, and my DH will add to the noise with music and playfully winding the kids up and it feels horribly overwhelming and I really struggle to stay calm and not snap and turn the music off. I hate being like this and really try hard to be unruffled but don't seem to be able to manage it.
As context, my mum is a massive stress head and I was brought up seeing her massively overreact over little things. I have tried really hard not to be like this, and I am much much calmer than she was (eg when I cook with my kid I am totally calm when she drops eggs on the floor or breaks bowls or whatever, and have drummed it into her that it's totally fine to make mistakes, we just clear it up and no harm done.) Equally I can be calm in other situations, I smashed a window by accident yesterday and was able to not freak out, calmly get my two small kids away from loads of glass and call to arrange a repair. I think the difference with that sitiation is that i didn't 'feel' lots of stress - i didn’t get a rush of emotions and get overwhelmed, i guess because it was a single thing which happened so it wasnt too much to process and deal with (my mum would have gone nuclear in that situation). It's more the day to day stuff, getting out of the door, getting a special meal on the table when lots of people are around which I struggle with - it feels like my emotions get full up and then something (noise, somebody else's actions, mess etc) push me over the edge and i can't keep a lid on my reaction. Also for context, I have a long history of anxiety and depression, but these have largely been under control since taking SSRIs for the last 5 years.
I'm feeling really shit about myself and looking for advice about how to get better at this. Please be kind and don't tell me how awful I am, I am perfectly aware that it's not good to behave like this and it's not for want of trying to change.