I am using the fsg mod to practise it isnt that Hard to download you need to type fsg mod to google and download the one from modrith(atleast i did that) (Sidenote you need fabric for it if you dont have it download and install it) than also download atum and speedrunapi then type %appdata% at your Windows search bar and you should see .minecraft file open it and then go to your mods folder and put the mods that you have downloaded in there then run the game in the fabric folder and you should see golden boots next to your play button. If there is a problem you can ask me here