Worst investment I did in my live. is chia scam?

He might be “not farming” without knowing it.
If the topic-starter invested 2000 bucks and then just lets it run, not implementing a monitoring and alerting solution (there is plenty of good stuff out there like ChiaDog and ChiaHarvestGraph) then yeah, what can I say. Hopeless…

hence, you need pool for the monitoring, as suggestd in every other comment