Are you even serious? or are you just trolling?
Tether(USDT) is
tethered to 1 USD hence tether only hovering $1 or a few cents more or less. You're pretty much investing on something that's supposedly not going to move in value. Though it's debatable whether or not it's safe to store your funds on tether.
Also, make sure to do research before investing, as it looks like you definitely didn't do any research with your tether "investment".
Read:
https://tether.to/If what I read is right. Your investment will not grow even if you will hold if for a long period of time, is that right? So what is the sense of investing to it? LOL