Teen moodiness

My mom lectures me about my "moodiness" and "attitude" often, and I can understand what she means. But I always try my best to be cheerful and happy when I'm around her. It kinda feels like I have to be happy all the time otherwise it'll be seen as an attitude. But I know that's not the case cause she doesn't always tell me off about it.., but still, I want her to understand that at my age I can be moody or easily irritated sometimes, cause I understand when she's irritable, like during that time of the month or cause of menopause and stuff. I'm rude to my siblings sometimes but we never fought before, whenever I'm rude to them I'm just irritated or it's for jokes, but my mom doesn't like that. I want to fix it but it's so hard when I'm not in the mood or when I'm already irritated... At school I'm almost never moody though. Like I always am the cheerful one for my friends, because school and academics gets stressful asf so I'd rather just be happy instead. But at home I can get moody sometimes, and I just dk how to stop or avoid it. and I've messed up a lot already because of this. Idk what to do bruh