CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 66 % of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

All my settings in dollar

how can i change all my icons on my Demo investments screen and any screen tbh so instead of dollar $ its £’s thanks

I don’t think it is possible.
Demo is just to learn and test, what works with $ will work also with € or £ .