yea but shard camping for noobs isn't uncommon either......try sneaking??? Watch others....cant offer much help other than that......find a group willing to shard hunt real fast.

Once my girl and I were hunting Skyshards during Early Access. We entered one of the Skyshard caves and found all the mobs had been cleared down the tunnel; progressing through the cave in sneak mode allowed us to surprise attack 4 enemy players and wipe their party. Afterward, we continued the rest of the cave and got our shard.

Getting PK'd is a very real possibility while hunting for Skyshards. As mentioned above, sneak through enemy territory. Ideally travel with a friend or small group.
If you are heavily concerned, see if you can guest in a campaign with lower population for more general ease of travel.

Don't sweat it too much if you get killed though, it's just a part of the game.

Depends on the campaign.
On a balanced one with lots of action, just stay off the roads between keeps and you should mostly be fine.
For unbalanced ones that are completely controlled be one faction, you want to be a part of that faction so you also have a chance to get the ones inside the enemy gates.
If you're on the opposite side, you're only hope is to sneak everywhere. Sneak makes you invisible until they are right on top of you, (put your pet away and watch out for mage light). You'll also find more players of the dominate faction exploring those locations because there's little else to do.

Camping a sky shard location usually happens in the towns. Every cave and town, and certain points of interest, should have a sky shard. You may have to deal with some strong mobs as well. In both these cases, it's best to bring a friend.