I feel horrid but since this lockdown (and occasionally before), I'm struggling with my step son.
All I can say is it feels like he just likes to be annoying. If he thinks something is winding you up, he'll do it more. He makes silly noises at the top of his voice over and over and over, if you ask him to stop he'll do it louder. He won't do anything you ask him to without doing something silly first, he winds his siblings up no end so they end up fighting, he will poke and prod and just be silly despite being told to leave them alone, he will ask you the same question 20 times despite knowing the answer to wind you up. He can also get quite aggressive with his siblings if they fall out, he will punch and pinch and has left marks often on them from it.
He can often be a lovely boy and I do care about him but I'm finding him really hard to be around at the moment especially as I'm looking after them a lot on my own as I'm WFH and DH and Ex aren't.
I just need to rant. I know he's just being a kid and he's probably bored but I feel at the end of my tether with the silliness and annoying stuff right now.