Aibu to express irritation rather than filter it?

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As I get older, I am more tempted to say what I think. As someone deep in peri menopause, I’m definitely more irritable and prone to speak unfiltered. I am also insecure which makes the situation a bit of a powder keg. Examples:
Really pushy mum friends - their constant quest for projected brilliance is just exhausting and, to me, incomprehensible;
My kids- only a few days into holidays and their constant bickering drives me insane;
My extended family - lots of history there and everything feels emotive and exhausting.

I feel life is quite exhausting at the moment as Im constantly on edge and never feel relaxed. Holding my tongue feels exhausting. If I do respond naturally (very rare) I then feel bloody awful. For example, I did challenge a pushy mum recently and then felt terrible about it even though the challenge was probably objectively fair.

I know I’m being unreasonable. But how do I stop these things getting under my skin so much and eating away at me? I want things to just go over my head but I don’t know how?

Put things into perspective.... pushy mums are surely bottom of the pile of priority? I assume they aren't your actual friends, or you'd have called them so? Just breeze in and out of conversations and leave them to it.

Children and family are a different ball game - not sure how to help there, sorry

The person I challenged is a genuine friend. Lovely in many ways but this part I really struggle with. Am sure she struggled with elements of me too. I’ve never been tolerant but it’s like my previously intolerant personality has been heightened and magnified beyond all measure. This sort of stuff genuinely takes up lots of headspace. How do I stop that?

Could it be a hormonal imbalance that the doctor could help with?

I’ve tried user. My bloods are apparently normal at the moment though doc agrees my symptoms are definitely peri (major hot flushes, night sweats, periods all over the place).