Well, young lady, quite the celebrity these days
As for your "pooping" bike I suspect its unburnt exxcess fuel igniting in the exhaust
(good old fashioned backfiring to you
)
check that the air filter is not clogged up and get someone to check the "float" needle in the carb to make sure its not flooding, that could cause an over rich mixture
Let me know how you get on, but well done for persevering with a less than perfect bike
many novices use that as an excuse not to ride
Keep it up
Stella will be sooo jealous when you turn up
Em