I was lucky enough to buy about 4 Bitcoins ten years ago on IRC, long before crypto exchanges were really a thing.<p>Over the last couple of years I've thought about cashing out. I've not really followed cryptocurrencies since I bought them, and so I've got no idea how best to liquidate them.<p>They're held in a private wallet, on a USB stick, in an envelope in a drawer.<p>What would be the best way of turning them into real money (British Pounds Sterling, I'm in the UK) without getting scammed?