I have an ATPL with 3500 hours time, some on C550/C500 and B200..plus numerous twin engine AC
I left the industry over 23 years ago because of the frustrations, that you are finding... And to be honest if you are 25 now with only those hours, you may have missed the boat.....
Try getting into fire spotting flying PA28 here in WA...lots of hours little pay.They were advertising here not long ago.
As someone has said, its a matter of getting to know people in the industry and they recommend you for a position.....
good luck and have a plan B
regards
KB007