You won't understand what you are bidding on until you win the bid. Then you need to figure out how do it once you win. Filter the projects by US/Canada only. Bid on anything that sounds remotely doable. Don't be afraid to backout if the requirements are too wacky.
I was able to charge $35 US. An $80.00 fix rate project should be avoided... the most clueless post will need handholding those are the relationships you need to build. Most of the work is building relationships
and the guidance on rates is completely out of line. custom usb driver for $80? $12/hr for development work?