Americans, do you find British English hard to understand? Do you realise the spelling differences?

My favourite colour to wear is white.
I realise blonde hair doesn’t suit me.
I get along well with my neighbours.
I like to keep my house clean and organised. My favourite flavour of ice cream is chocolate chip.
I recognise that Africa is not a country.
My behaviour towards other people is mostly good unless I feel another person is not treating me or another person well.
It’s not okay to criticise other people for the way they look.
It is good to socialise with other people and have fun.

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+1 y
All these sentences I wrote in British English.
Do you realise the spelling differences?
Does this spelling differences make it hard for you to understand me?
Americans, do you find British English hard to understand? Do you realise the spelling differences?
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