Linguistics is only useful if you intend to pursue advanced degrees after your Bachelors degree. You can find your way into speech-language therapy, computational linguistics, other research, become a professor, etc. Linguistics is the study of human language in general. Language structures, semantics, formation and composition, syntax, phonology, phonetics.

Every aspect of knowledge can be fascinating if done with tenacious effort and with the attitude of a scholar. Obviously if that subject does not fit your interests don't get into it. Linguistic studies (and a good knowledge of history) permit to draw a map (actually a graph) connecting present and past languages.