Hello! Meaning: A grocery bagger is the person who in a supermarket or grocery store who puts the items into the bag once they have been scanned. Is this viewed as an ideal job? (No). Therefore Talia does not want to be given this title. You can also see a level of colloquialism due to "It is not like"; giving the sentence a slight sarcastic tone, thus saying that Talia Randle did not want to have the title of fastest grocery bagger. A small correction that I would use: It is not like Talia Randle grew up dreaming of *becoming* the fastest grocery bagger in the West. Being is a state while becoming implies a transition from one state to another. And a small fluidity correction: "*It's* not like Talia Randle grew up dreaming (etc)" Since it's colloquial, I naturally would use the contraction. Not my cleanest explanation but I hope this helps!

It has a specific meaning in context (which we don't have). Literally, it means that: "This situation is not similar to one in which she grew up dreaming of being the fastest grocery bagger in the West." or more simply "She did not grow up dreaming of being the fastest grocery bagger in the West." My guess is that Talia worked in a supermarket and was a very fast grocery bagger, but this was not a skill she had ever planned to acquire. But the context may be different. There are no grammar mistakes in the sentence. Read other example sentences including "it's not like" at https://fraze.it/n_search.jsp?q=it%27s+not+like&l=0 Try to get the feeling behind the use of the phrase. Sometimes, it is used ironically, dramatically, and/or sarcastically.