Tic-Tac-Toe is a solved  game. If everyone moves perfectly, then every game comes to a draw, regardless of who goes first. Your question assumes facts which are & not false, but misleading. It is Possible  to win if you go first, if and only if your opponent makes mistakes.

How to win tic tac toe when you go first. When you're the first one up, there is a simple strategy on how to win tic tac toe: put your 'X' in any corner. This move will pretty much send you to the winner's circle every time, so long as your opponent doesn't put their first 'O' in the center box.