It is much easier to tame on PVP, as you cannot pickup wild dino's on PVE, and it is CONSIDERABLY easier to tame at home then in a swamp.

If PVP, pick up with pteranadon or bigger and bring home (or put in strong box) to tame.

Still eats only veggie cakes, pain but easy with 1-2 beehives per achatina. Also know whether or not you need to break certain trees or use a tap on your world for sap.

Hope the collection of tips helps.