My ds2 is 5yo and in yrR. Before lockdown he was the sweetest little boy at school - all the teachers adored him, he was a total suck up and just absolutely loved doing all the little jobs he was set and would try really hard with all the work he was given. He made 2 really close friends who were both a lot quieter than he is. He is very outgoing and confident and he seemed to sort of take these other 2 boys under his wing. He was constantly being asked to go to the park with his friends after school. Just generally a very happy, confident, smart little boy.
Then it was lockdown. Dh and I are separated but still living together (sort of, house has been split into 2 so we don’t actually have to see each other much) but we were both working throughout lockdown. I can normally do my job in 6 hours which is perfect for school but with being at home and not having systems set up it was taking me about 9 hours. Neither of us are key workers and neither of us could take more than a week off each. As a result dc’s were on iPads, tv, reading or playing Lego alone for the entire day. I’d pop in to get them logged on for the start of their lessons and then have to leave them to it. I’d always take them out for a couple of hours late afternoon, even if it was dark just to get out of the house but that was genuinely the only time I could spend with them. I know it’s awful but I had no one to help and I genuinely had no other option.
Anyway, since being back at school he is a completely different child. He’s sobbing when he has to go in, refuses to do any work at all because he keeps losing his temper and screwing up his work. I was called to collect him on Monday as he’s been crying continuously for nearly 2 hours but wouldn’t let anyone go near him. Then today he had a complete meltdown during some painting they were doing and threw the paint across the classroom, tore up everyone’s work, threw a chair at a teacher and then just stood there absolutely screaming and trying to tear his clothes off. He’s got a lump of hair missing that I noticed when I got him home that I’m guessing he pulled out. His teacher said it was frightening for the other children so the TA took all the other kids out of the class while teacher tried to calm him down. Eventually he stopped screaming and just climbed into a little tent they have and stayed in there until pick up.
I don’t know what to do. He’s still the same at home. He’s been losing his temper a bit more but nothing like the teacher described and I’d just put it down to him being tired from being back at school. I’ve taken him to the park a few times after school but none of the other children have seemed to want to play with him, even his best friends and now it seems to be due to his behaviour at school 
.
Teacher asked if I was having any help with him or had something traumatic happened to him. She said there’s a lady that comes in who does play therapy so she’s going to see if he can have a session with her. What else can I do? I can’t even take time off work to help him properly as we’ve all been put on notice of redundancy. It’s all such a fucking mess.