Elite Dangerous is a sand box, some things can be done in different ways, with different ships and upgrades, you'll get the hang of it. For bounties I usually do it in different ways;
- Go to supercruise and scan for ships with "wanted" status, and then interdict them (buy a Frame Shift Drive Interdictor module first..)
- Drop into "Unidentified Signal Sources" for some luck
- Go to Resource Extraction sites, or Nav Points which usually is a fast way to rack up credits, but it usually go gnarly after a little while, so be ready to get out of there when overpowered.
And be careful to not accidentally shoot security forces if they are around while dogfighting
https://www.youtube.com/results?search_query=elite+dangerous+tutorial