I am 36M solo founder with about 6 products under my belt but I am super-scared to promote them!

I've spent exactly all of last year building a total of 6 products, 4 of which are paid.

But I haven't gotten a single paying customer yet.

Channels I've tried.

• Posting on Hacker News and Product Hunt

• Paid ads (Google, Instagram, Reddit)

• Listing on tool directories ("ThereIsAnAIForThat.com" etc)

• Creating Free tools and sending some related traffic back

• Asking a couple of people I know to try my products

Each have given me various degrees of success. Rest assured, I have lots of users using the free parts.

Recently I'm trying push marketing; for example recently my girlfriend and I went to a pet-friendly cafe in Bangalore and we got talking with the proprietors. One of them was interested in what I was building and I found myself pitching my product them.

I felt icky and weird since all my life I've been a software engineer and hardly ever someone who sold anything.

What's your experience getting customers, especially the first ones for your product?