First meaning: very
Allows you to emphasize something, whether it is a good or a bad point!
Ça va très bien et toi ? (I am all good, and you?)
Ton devoir est très mauvais. (Your homework is the worse ever)
=> In these sentences, “très” can be replaced by “vraiment” (“really” in the sense of “so much”).
First meaning: too much
Is used to express something excessive like if you’ve reached a limit. The sense can be negative but not all the time!
Indeed, in daily life, especially when people talk, “trop” is used to sound cool.
J’ai trop mangé, ne me resservez pas, merci. (I am full, I will stop here, thanks)
Il est trop mignon ! (He is so cute!)