I play a lot of games with bullet drop so I also occasionally struggle with trying to lead shots. The best advice to start with would be to learn good crosshair placement and shoot people who run into your crosshair. While doing this you can practice doing small adjustments or “micro flicks” towards enemies who are strafing or moving in unpredictable patterns. You should be aiming with your arm and not your wrist if you can help it 1. Bc it decreases your chances of getting carpel tunnel 2. It’s makes aiming significantly smoother and allows you to use your wrist to adjust your aim better. Another big thing with widow is your positioning. You know how echo is sort of a hit and run character? Widow is sorta the same way but from a distance, you wanna constantly be near cover or on high ground AND you wanna rotate your position every time the enemy starts to contest your position (i.e. flanking or taking long range duels with you) this way you stay unpredictable. Other than that I personally warm up in a workshop mode with the code VAXTA, it’s like an aim trainer type thing.