Ran the numbers on my own first business attempt and talked to a dozen other solopreneurs about theirs. The pattern is almost identical every time:

Month 1: High energy. You build in isolation, convinced the product will speak for itself.

Month 2: First contact with the market. Sales are slower than expected. Motivation dips.

Month 3: No peer group to reality-check against, so every setback feels like proof it's not working. Most people quit here — not because the idea was bad, but because they had zero outside signal that slow starts are normal.

The founders who make it past month 3 almost always have one thing in common: a small group of other builders they check in with regularly. Not a mastermind with a $2k price tag — just a handful of people building in parallel who can tell you "yeah, that's normal, keep going" or "actually, fix that before you scale."

If you're solo right now, that's the single highest-leverage thing to fix before your next product tweak or ad spend. Find your people first. Everything else gets easier.