Building solo is lonely… anyone actually found an accountability partner that works?

Every few weeks someone posts about the loneliness of building solo. The comments include lots of people that seem to encounter the same (including me)… often with two things as ways to cope – AI as a thinking partner or finding a human accountability partner.

Of course, I also try using AI and actually my biggest challenge is a bit technical – the context. If it doesn't have enough knowledge, it cannot be helpful at all. If it has too much context, it gets lost… not having the depth of thought that a human in such a role has.

When it comes to accountability human partner – I have one for life goals and it works really well. But I've never had an accountability partner specifically for the solopreneur grind and it has diffrent challenges. I'm thinking about the main challnges to get a real value of such partner.
What's actually the bigger challenge – finding a good one that you can trust each other or what is your process together to make the whole thing meaningful and last more than 3 weeks?