4 year old struggling at nursery

Hi all,

I was wondering if any of you lovely people had any success stories or help/tips you could share with me? My 4 year old is currently struggling with his interactions at nursery, hitting and kicking out for various reasons. Even though he still requires support outside of nursery, it is definitely exacerbated in his current nursery setting. He's due to start school in September and I'm very anxious that he will not fit in there due to him struggling with his physical reactions to things. Whilst academically he's absolutely flying (he can read, write, count to well over 1000 and can even do his two times times tables up to 100 Joy), he just needs a bit of support with building positive relationships with peers and transitions etc. 

Has anyone been in a similar situation but everything has turned out better than you expected at school? Or any advice or tips that helped your little one to stop hitting/kicking when frustrated? I feel like I've tried everything but this is all still quite new to me so I'm very open to ideas! 

Thanks so much! Elle x