Can you understand me?

I bought 1 GUN for 0.02996

and I wanted to sell it automatically at 0.03020 when it goes up.

I was thinking if I buy 1 gun I can sell it, but this message appeared to me: 5 USDT is required (which means I will get 165 GUN tokens. Should I buy them for 5 USDT and wait for the price to go up or not? For those with experience, do you advise me to do this?