I want to mention that not only can you do a selfie for your photo (but against a plain background, like a passport one), you can also go to your local council offices for help with the form filling. Some councis are also doing help sessions in local libraries for those who do not have access to Internet, or mobile phone, etc.
If you know of someone struggling, especially in a different part of the country, then google their council website for info and pass it on. It really isn't that difficult, but more importantly don't leave it until the last minute. There is help out there!