Email can be a problem if you chop and change a bit like mobile telephone numbers. I have had the same mobile number since 1993 (well the code changed from 08 to 07 but the main bit is the same), I have many email addresses but I have one catch all address and I redirect everything to it, I do this by having my own domain which is hosted by 1&1 and allows me to redirect everything to it. I highly recommend that you register a domain and then you can have an email address for life James. My email address is basically my name so even though I am old even I can remember it
The cost is only a few pounds every year but it makes life easy.