Hey, English is THE most competitive humanities subject, but don't be deterred by that. You sound like you have a genuine interest and passion, and that is much more valuable than how many A* you got.
You mention Leeds and Durham, two of the best english schools in the country, however they are hideously oversubscribed. Leeds state ABB is their 'normal offer' yet you realistically have to be predicted AAA/AAB to get a place. A friend of mine applied for History at Leeds, the typical offer is BBB, he was predicted BBB and Leeds told the school that you need AAB (at least in predictions) and moire than 5As at GCSE. Both are extremely competitive.
Likewise my friend is off to Durham, and they receive like 4 candidates per place, and want AAA. However, a little bit of research will reveal some real gems. For example Glasgow is noted as one of the best English faculties in the UK, and they ask for BBB, yet you have to realistically be predicted ABB. Manchester (where I'm off to) want AAB but are known for their avante-guarde course modules. Keele is a fantastic campus and they want something like BB.
I'm not trying to put you off trying for Durham, Leeds etc, I wish you all the best in your application, however it is also worth at looking at some universities which are not typically considered the cream of the crop regarding English.
If you need any help with Personal Statements or anything give me a bell.
Steve