You can build a residence or palace in your 15 and build settlers from it. Then later on, as you get more villages, you can always chief your own village with a later village (if you are concerned about keeping all three slots open on your cropper for building chiefs). Google it if you want step by step instructions.
If lack of resources worry you, you have two options: 1) If you don't mind burning some gold, work mainly on getting up your crop fields and NPC crops for resources. Tried and true method, but it costs some gold. 2) If you have a village or two in your starter area, work on getting fields up to 10 (if they aren't already) then get your marketplace up to level 20, stable to level 10, and then build a trade office. This way you can ship the maximum amount of resources possible to your cropper. That way you can rush toward a supply village. Normally, you would also have the option of instead rushing offensive troops, but given your placement, it will be some time before you can raid - you're pretty far out there with no one in close sight.