I’m debating on my wedding dress and having second thoughts about it

So I’m getting married in November .. and ever since I was younger I always wanted a princess gown looking dress and well I was so excited about getting a puffy dress Bc that was like my dream wedding dress .. but someone told me that I shouldn’t get it puffy Bc It’s not a “quinceñera “ it’s a wedding .. and like 2 other people told me the same thing .. I already paid for it and everything , I’m just waiting for it to get here in August but I’m having second thoughts about Bc of what I was told . I’m only 4”11 , so the dress is really really long on me and the crinoline skirt makes it puffy and helps it be less longer ,also I’m not thin so Iv been feeling like I’ll be looking like a piñata with a puffy dress or so I was told .. I’m really insecure about my shoulders so I’m planning on adding something to cover them and also a belt so I won’t feel like I look too over weight .. but I’m not sure if it would look good with or with out .. 😏

I’m not always this insecure but maybe it’s normal ?Bc every bride would wanna look their best .. 🙄