Unhappy plant ID please

in Plants

Please can anyone identify this plant and help me get it looking more happy! I’ve had it for a while and sad to say I have ignored it. I tried the copper strips for slugs with no success. I am a newbie to gardening 🌿 thanks in advance.
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In the sticks near Peterborough
In the sticks near Peterborough
In the sticks near Peterborough