Guys i have to spill my guts i'm about to fail my class and my girlfriend and parents and all my friends are worried about me because i'm depressed and i just need to be put in the right direction and i'm worried myself because i have never failed and this year i got really depressed and i always feel sick because of being worried all the time

Maybe you could ask your parents to see a therapist. Letting your emotions build and having bad habits can be extremely un-healthy. Try talking to someone you look up to and see what they do to keep your life under control.

there is 2 main differences, basically which are the users and the market. the other difference is the kind of content

people who use tik tok are mainly people from east asia, kind of like the app douyin. musically, on the other hand, are used by people from america or european countries.

while tik tok videos show things like daily life videos, comedy, or just funny videos, musically are like people mimicking songs with their own actions, 'imitate' singers and video clips.

hope this !