I agree @ResIpsaLoquiturInterAlia - sleeping on it my thoughts are:
If we're honest, we didn't really have to beat anyone that good besides Germany. We had home advantage for the majority of our matches. It was a real opportunity that we should have taken but it's all woulda, coulda, shoulda...Italy were the best team in the tournament. Easy to analyse what they should have done after the event.
I feel that it will be hard to go to the World Cup and try to beat the South American teams as well as some of the European teams like France or Belgium, but a good thing about it being in Qatar is that nobody there will have any "home" advantage. As long as we give a good account of ourselves and keep the spirit we should do well. The feeling we normally have of England throwing it away and just not looking like they cared enough is definitely not a thing this time around. Let's take heart from that.
Finally I think all the hype and "coming home" mentality doesn't help and fires certain people up the wrong way. I love the songs etc but as long as the team have those sorts of pressures, like it's our right to win, and then abuse (often racist) when it doesn't go our way it really turns me off. I know it's a minority of idiots but it's shameful.