I work areas that have been extensively worked by machines, hydraulic-mined, dredged (scraped), wing-dammed, flumed and worked to bedrock, then meticuliously hand-worked by the Chinese after the other miners left having already used the aforementioned methods, etc., and there's still gold left behind. So, even if you're working inland, there's always some gold that was missed; no one gets it all. If you can, get together with some locals that are actually finding gold inland if that's possible and learn everything from them that you can. Every placer area is different and requires some new understanding. Finding gold is hard work, no doubt about it, but it can be done; however, you have to follow the three rules of prospecting ruthlessly: 1. Test, 2. Test, 3. Test
To make things simpler, it really will be better if you can get someone that's been at it a while in your area to show you the ropes, truly. If not, then you'll be blazing the trail by yourself through research, and that can work as well, but you'll need a serious investment of time and research material to figure things out, and you'll need considerable time in the field to locate your paying placer ground.
Beach mining can be done quite simply as stated above in Winner's post, so that might be the way for you to start if through your research you find there are gold beaches in your area.
As for making a living, it really is wide open to interpretation as to what that means to you. If barely surviving, then maybe, but if you find some good placer ground and really get to know what you're doing, then maybe an uptick in living.
I'd hit the placer streams in your area (regardless of how hard they've been hit) until you learn how to recover gold. That will give you some idea of the tenacity required for your initial training.
I don't make my living chasing nuggets; I enrich my overall life-experience chasing nuggets. For me, that's the draw, the chase, the mystery. It's the wonder of trying to interpret where Mother Nature cached her gold, and the surprise and reward that comes from solving her timeless riddles. Plus, I've met some incredible people I never would have met any other way.
All the best,
Lanny