At risk of driving myself insane

Apologies in advance for the ramble.

Myself and partner have a 14 week old springer spaniel who we've had since 8 weeks. We've talked about getting a dog for over two years, but waited until our lifestyle fits.

I mostly WFH whereas my partner works nearby, coming home at lunch, but is out the rest of the day on week days. We do make an effort to share the workload as much as possible and since successfully crate training the puppy and him reaching around 12 weeks of age we've seen a fair turnaround and it's been overall more manageable.

I am still really struggling though. I find myself obsessing over doing things wrong, about ruining the puppy's training or creating bad behaviours for the future that I can't actually enjoy him at all. I'm constantly worrying about what I should be doing or what I've done wrong, or overanalysing bad behaviour and trying to figure out what it is I should have done differently. This, plus the fact he is a handful, is leading to resentment which makes me feel guilty and reduces my patience with puppy, creating a negative cycle in my head. Whenever it feels like there's a regression in his behaviour or training I absolutely spiral. I find myself comparing him to a family's spaniel who overall was a calmer puppy, but did also have an older dog role model.

I just needed to opportunity to get this out. I need to remind myself of the improvements we've seen in 5 weeks, and therefore where we could be in another 5…