Things I got wrong building my first SaaS that nobody warned me about

Been building a B2B SaaS for about 6 months now. Not a huge success story — just over 100 users, bootstrapped, solo founder. But I've learned a lot of lessons the hard way that I wish someone had told me earlier.

Sharing these so maybe you don't make the same mistakes.

1. I built for 3 months before talking to a single potential user

Classic builder mistake. I was convinced my product needed to be "ready" before anyone saw it. By the time I launched, I had built 4 features that nobody wanted and was missing 2 features that everyone asked for in the first week.

What I should have done: Landing page on day 1. Email list. Talk to 20 potential customers before writing a single line of code.

2. I targeted "everyone" instead of one specific person

My product helps B2B sales teams find contact data. I tried to market it to SDRs, founders, recruiters, agencies, and enterprise teams — all at once. My messaging was so generic that it resonated with nobody.

What fixed it: I picked one persona (SDR at a startup with 10-50 employees) and wrote everything for them. Signups increased immediately.

3. I wasted money on Google Ads before having any conversion data

Threw $200 at Google Ads with "Maximize Conversions" bidding. Google had zero conversion data to work with, so it just burned my budget on random clicks. Got 0 signups.

What I should have done: Manual CPC bidding first. Or better yet, skip ads entirely until you have organic traffic and know which keywords convert.

4. My onboarding was a dead end

New users signed up, landed on an empty dashboard, and had no idea what to do. My activation rate was under 20%. People literally signed up and never came back.

The fix: Added a guided "create your first campaign in 60 seconds" flow. Activation rate went to 55%. Still not great, but 3x better.

5. I ignored SEO for the first 4 months

No meta descriptions, no structured data, no internal linking strategy, duplicate title tags everywhere. When I finally audited my site, Google had indexed 3 of my 50+ pages.

What I did: Spent 2 weeks fixing every page — unique titles, meta descriptions, breadcrumb schema, proper H1s, internal links. Also built 26 free tools (email grader, commission calculator, UTM builder, etc.) as SEO landing pages. This is now my best acquisition channel.

What's actually working:

• Free tools as SEO landing pages (26 tools, each targeting a keyword)

• Honest comparison pages against bigger competitors

• 1,000 free credits as the signup hook (no credit card required)

• Being in communities like this one and actually helping people

I'm not sharing this as a success story — it's more of a "here's what the messy middle actually looks like" post. Happy to answer questions or go deeper on anything.