Ask HN: How did you get past $10K MRR?

Hi HN,

I started a SaaS company 3 years ago with no prior knowledge in sales or marketing. Got first few customers from existing network and facebook. Since then my co-founder and I kept repeating same process for new customers, without focusing on 1 channel.

Now we are at steady $10K MRR with a product people love, healthy margins and low burn rate, but don't have a repeatable customer acquisition process yet. Finding new customers on facebook / cold email / adwords is painfully slow, because current customer base is diverse enough to detect any pattern or build a profile. (Ranging from $10 customers to $1500/mo customers)

Has anyone been in this situation before? How did you pick a segment and kickstart growth?