Why are you harping on "what if it goes wrong?" When you keep reading, "don't worry," "time heals..." yadda yadda yadda.....
We wouldn't say that if we didn't
experience the truth of those statements.
It is very, very, very hard to ruin a batch of beer,
especially a first timer's batch. Your equipment is brand new, relatively clean, and un scratched....so what makes you think
you're going to be the exception to the rule?
Just because your beer smells bad? Wait til you brew your first lager, or a btach of apfelwien (can anyone say "rhino farts?")
Rather than worry about how it smells, quit sniffing your airlocks, and leave your fermenter alone. Your job is done, the yeasts are the boss of this process, not you, and they've been doing it for over 5,000 years, in some pretty nasty situations, heck even before people understood basic gene theory, think you did a worse job then those folks???
Instead of stressing, how bout doing some reading, and see, why we tell you new brewers to relax...
https://www.homebrewtalk.com/f39/wh...where-your-beer-still-turned-out-great-96780/
https://www.homebrewtalk.com/f39/has-anyone-ever-messed-up-batch-96644/
And the reason people tell you to never dump your beer...
https://www.homebrewtalk.com/f39/ne...virtue-time-heals-all-things-even-beer-73254/
The only thing wrong is that you have a typical case of "noobitus," the tendency to think of your beer as being as weak as a newborn kitten....