I wouldn't drop English of all things, as unlike maths, if your grammar is good and you can make a good point when you write you'll easily secure a H3. You could easily fail maths or have to drop that, then you'd only have 5 higher level subjects!
If you find you have a lot of English homework it would be best to bring this up with your teacher, or ask the other students if they have an issue with the amount of homework. Planning your answers before you write and learning notes better can reduce your time spent on English.
Grinds are always available - sc. evadonlon1 to learn more