"I want to travel and relax a bit."
Further to my previous reply, please also note that there is a special punctuation mark used in Chinese in a sentence like this. Duolingo has used a comma, but normally you would use a 、 which is called 頓號〔顿号〕dùnhào which Pleco defines as a “slight-pause mark used to set off items in a series.”
It seems like this sentence should be okay with 和 linking the clauses, but you wouldn't use 也. See also the accepted answer to this question https://chinese.stackexchange.com/questions/21391/whats-the-difference-between-也-yě-和-hé
But to answer the original question that you were responding to, it is pretty common to not use a conjunction in a situation like this.