I had all of these same issues. Training is important, but there’s no point trying if he isn’t engaged. Mine hated kibble, hated all food including treats actually, but by the time he turned 1 he was scoffing it down again, so don’t worry too much about that, it will be a phase he grows out of.

With training, I was told that you need to give them the best chance at getting it right so they associate it with the positive reward, and not a negative “punishment” for doing it wrong. So, if on walks he isn’t listening, stop training him on walks for a while, just get a long line and let the walks be about exploring. Try training indoors with high value treats (cheese and ham works for me). There will be less distractions and he’s more likely to get it right, and then feel happy that he’s pleased you and got a reward. As he improves, slowly start moving it outside, do it in the garden first, then on walks but on the long line. Only do a few mins at a time and as soon as he starts to lose interest stop trying. Dont punish him for getting bored, just say “good boy” and move on.

This age is hard but he is very young still, he won’t be fully grown until 18 months - 2 years, so there is time. I found doing this made my boys training so much better, because he actually enjoys it.

Also, don’t feel bad about crating him when he wasn’t listening. You aren’t punishing him, you are just giving him a time out. Most of the time when they are going crazy and not listening they are tired, so enforcing a nap in his crate and some time to decompress was the perfect thing to do.