Learn one system at a time
Spend the first attempt learning movement rather than chasing a high score. Test jump distance, steering response or firing rhythm in a safe part of the level. Once the controls feel predictable, add the objective back into your decision-making.
Look ahead, not at your character
In racing and platform games, your character is usually near a predictable part of the screen. Direct more attention toward incoming terrain, enemies and projectiles. Earlier information gives you more time to make a smaller, safer correction.
Use deliberate inputs
Holding every button creates large movements that are difficult to correct. Short taps are useful for lining up a platform landing, balancing a motorcycle or steering through a bend. In shooters, controlled movement also makes enemy patterns easier to read.
Treat retries as information
A missed jump or collision reveals timing, distance or speed. Change one part of the attempt instead of repeating it identically. Short browser games are designed for replay, so a restart is part of learning rather than a failure.