Nursery - when does it get easier?

Once he’s settle with the environment and staff, could be a few days, weeks or even months dependent on how frequently he goes. I’ve worked in the childcare industry and every child is different. Those who don’t go as regularly (1 day a week) may take longer to settle than a child going 3+ times.

It will get easier, I promise x

Just wanted to say I'm in the same boat. My little one is in 3 mornings a week (8-1) but she cried throughout both her setting in sessions so this week we are doing 9-11.30. Yesterday she was upset but they have managed to distract her and she slept for a whole hour. Today they said she was very unsettled, refused her snack (she never normally refuses food!) and wouldn't nap. So it feels like we are going backwards! Nursery have suggested I take in some expressed milk for snack time tomorrow to see if that will help. I cried earlier as I just felt so guilty!

Isn’t it sad that we need to send them to nursery when they are so little?! I know long term it’s good but I do think 1 year is too soon.

It does get better. My 2nd was exclusively breast fed and barely drank water from a cup. She weaned late too (after all, why eat when mummy milk is right there 🙄)
First taster session of nursery, she sat on one lady's knee and watched all the children. First full day, she cried, refused all food, drank a few sips of water. Second full day, she found her lady again and sat on her knee, refusing everything again.
By the end of week 2, she was still clingy but ate all and extra of everything.
It took about 6 months for her to not cry every time I dropped her off or picked her up. (Only when I dropped off - Dad and Grandparents didn't get any tears. Who knows?) She was instantly fine by the time I left the building - I could hear it.
Overall she is my clingiest child, even though she isn't shy at all.
Perhaps, your boy could take a comforter toy or something that smells of you?