My Minecraft is broken. Can you

My Minecraft is broken. I downloaded the Camera Studio Mod for the 1.8 version. Since then my Minecraft in all versions has broken. I can't click on any items in the inventory, I have to hold down the left mouse button to move them. Everything is broken in the server selection (the picture shows it). Can you help me fix that? (I don't want to reinstall Minecraft.

If in doubt, reinstall Minecraft or remove the mod

Then all worlds, skins and so on disappear?

Skins don't go away. You can drag the worlds to your desktop just like the resource packs and possibly mods.

You can save the the saves folder somewhere else and then your worlds are save. Skins stay

The same with the Resourcepacks folder

Exactly

Okay thanks xD

Sorry, but I'm a little stupid. How do I uninstall Minecraft? Is that from the launcher or do I have to delete the launcher?

Watch on YouTube

You just have to delete everything you no longer need and restart the launcher.

You have mc on your desktop (top left or so) right click on it and click on delete / uninstall!

Only deleting the shortcut does nothing

Many thanks. Now it is "fixed".

No problem