I think that’s what the college kids were playing with when I was in high school.
Started college in 1995, and I indeed did have ICQ before too long. Still remember my number (6725571).
You probably had all three installed on your computer and probably all running at once.
I remember using a program called Trillian (which is still around!) in the late 90s/early 00s. It allowed you to connect multiple IM accounts in one app. It was sorta finicky, but it got the job done.
Oh, don’t you worry your sweet little head, we will.