Use this template for some simple player code which you can use in any of your projects. Inside, there are two variables you can change: player_speed and controls_reversed?. You can change the speed to whatever you want, but I recommend 5. If you set controls reversed to true, the controls will be reversed. Anything else will set it to false. Instructions are also inside.
If you use this, give me credit by putting my username and the link to the project, for example: Player template code by thekingcobra1010: https://scratch.mit.edu/projects/925181474/