Scared I won’t bring it up

I am 30.5 weeks pregnant with a 10 month old and for awhile now I have been struggling with my anger/anxiety, pushing it off, telling myself I just need to calm down, but I really feel like I need to talk to my OB about it before this next baby comes. I don’t know how I’ll feel or be able to handle things with another child and I am nervous. But every appointment I try and bring it up but I just can’t. I feel like I just need to force it out of my mouth but it shouldn’t be this hard. Has anyone dealt with this?