Is there a word for someone who is one second supportive then another second not?

I find myself being annoyed with my mom because she does this. One moment she sounds like a thousand year old man who has lived in nature and gives off random wisdom bits, then the next she’s unsupportive. Is there a word for this? Like earlier tonight I was telling her how job assessments where they do those phone calls simulations stress me out and frustrate me because I will not understand how to do it for the first time. So she goes on saying just get it done, stop complaining, not a big deal. So I told her stop trying to invalidate how I feel and let me express how I’m feeling. So hours later she’s going on about her job and she was like how you just can’t invalidate others feelings instead try to understand them. Another time I’ll say life isn’t linear and I’m just trying to focus on me. Then she’ll randomly say life isn’t linear. Then days later she’ll pull the you’re not where everyone else and everyone else is on the right track and just comparison. So is there a term for this? Cause it’s annoying like pick a side and keep the same energy