Is it really too early?

So I’m 19 and my boyfriend is 20. We have been together for 2 and a half years and we both want to move out from our country Croatia because we think it has nothing good to offer us (regarding career). But I don’t want to do it so fast because I am really young to be living without my mother and I don’t want to leave her or my dog to be honest. We have a great relationship and it would be strange to live so far from her. Am I being a baby, is this strange or is it normal to be thinking this way? I would love to hear some opinions.

My boyfriend disagrees with me, but he never had a grea relationship with his mother so I don’t think he can understand my situation properly.