Hey Baptiste! Yes this is something a lot of players find and it comes with more experience of course, but the more you train your basics shots and have good foundations to your game the easier it is to feel under control in games and less nervous because you know you have solid consistent shots.
It’s also important in training to practice these pressure situations, so do practice games from 9-9 or certain scenarios like that to recreate the pressure and nerves you get in real matches. Lastly being sure to have a confident serve and return because sometimes in matches this can make a big difference if you never get into the rallies. The pressure training will really help I think and just playing lots of games to build experience and get comfortable playing your normal game 🙂
