Being a bounty hunter is not an easy work
I don't think it is difficult. Bounty hunting is one of the easiest things on the forum. Unfortunately, sometimes bounty hunters throw their time and efforts away because of scam projects that they work or promote for.
The most important thing is finding and sticking with non-scam projects. It takes time and enough experience to do so
managing your work when doing multi-task or multi-project, time management, communicating with bounty manager.
The second most important thing, I think (I am not a bounty hunter) is having your own spreadsheet, to list all of your to-do lists, deadlines, and current progresses.
Generally, I don't think bounties are worthy to work (because of scam projects, scam bounties).