Hi! Welcome to the Forum!
Well, given the Baud Rate is not the problem, it would be interesting to know something more about your code and hardware setup.
It seems to me that some "GND" and "VCC" appearances on your Serial Monitor are too much of a coicidence to be only garbage.
Are you receiving data from another device (like Bluetooth for example)?
Since this is your first post, take some time to read this topic:
How to get the best out of this forum
You´ll find useful tips on how to provide information that will be helpful to all other users.
Have fun! 