What is a long strategy?
A long trade buys tokens that are expected to increase in value at a lower price so you can sell them later at a higher price.
You expect Bitcoin (BTC) to grow in price. Crypto bot buys some BTC and puts take profit order according to your take profit % and includes the fee.
It waits until BTC’s price reaches the calculated target and sells it back.
As a result you get more USDT coins.
Note: to start a long strategy trading bot you need to have quote coin on your balance. (USDT in this case).