Bannerbear is actually an example that even if you have an audience, and yongfook has been at this indiemaker space for ages, it is still tough to break $1kMRR [1] . He is barely over $1,030/month after almost a year at this project.
That's great then! BannerBear actually fits into OP's desire to be making $1-1.5k in 13 months!
Kidding aside - yes, I get it. SAAS products take a while and are hard. According to BareMetrics, after a year most companies are making $3333 in MRR [0].
But if you're living in a 3rd world country that's usually plenty of cash if you've got decent margins. The spirit of including BannerBear was more like "think about the things people do in Zapier and put together that product". Also, I just like the BannerBear story.
[1]https://bannerbear.com/open