Feeling so defeated at the moment. I’m a single mum of two under two, their father left me for a work colleague so I ended up moving back in with parents which is very embarrassing for a start. The problem is that my younger sister (just turned 20 and also living at home) is making comments all the time . For example she’ll say to my 15 month old son “ aww doesn’t mummy look after you?” And she constantly comes in from her job and says “haven’t you moved out yet” I definitely do look after my children and she’s always been mean towards me for no real reason since around 13 years old so I think she’s doing it to aggravate me. Another thing she does is constantly whine to my mum that I get lots of attention and help and it’s “not really fair” . Just today I was trying to tidy my sons toys so that the living room isn’t a mess and she decided to pull toys out as I was tidying them and encouraged my son to play with each one . I asked why she was doing that and she said “because it’s funny” I’ve tried reasoning with her but it’s like she’s got a vendetta for no reason and there’s no getting through. She complains that my children wake her up when they cry at night but my daughter is a newborn and this is unavoidable. I’ve tried talking to my mum about this but she can never see any wrong in my sister and I think is almost afraid of confronting her whenever she does something unpleasant she always lets it slide . Any advice? It’s so depressing living at mums with this going on :(