I’m not an Indonesian translator but a translator, here’s a tip I’d give any translator: Don’t offer vice versa if you’re not really really really good in your second language.
Don’t worry about how it looks if you don’t offer vice versa as so many other translators do, in fact, it’s “industry standard” to translate into your first language only.
And genuineguidance’s tip of finding something that people need is a great tip for anyone - as long as you can deliver it in a quality that people are willing to pay for it, of course.
Don’t be discouraged from offering translation into your first language, though, or things there’s low demand for, even if the interest may be low, niches can be quite nice too, and you can still offer something else in addition if you can do it well enough, or take the time and learn something well enough to offer it as a service.
Drop things with zero demand, though, but give it some time before you decide that the demand is zero.
That 10 times max thing you’re referring to probably is Buyer Requests, those are offers you send to people looking for a service through the BR feature (look it up in Fiverr’s help pages if you haven’t yet, and type it into the forum search too, to find tips on how to use it well) and not spam (unless you send an offer for something they aren’t asking for, obvs.)
Don’t ever send messages to offer your service to random users, not even 1, that’s a great way to get reported and a warning, or perhaps even ban.