Hey, christiano, you sound a bit like me.
I thought i was the only person who liked the sciencey subjects but wasnt a huge math fan.
I know its hard but the harsh reality is you need methods.
Many a time i thought of dropping it but it all came back to me needing methods for most of the things i wanted to do.
I have a tutor, that helps a bit. Its like group based with a class of 5 people who are much better at it than me. I got a tutor to pass, they got a tutor to enhance their score and get 50. So, sometimes i feel stupid for asking questions like.. how do you tell if a function is odd or even.. or something like that. He's a very nice guy though, "oh, that's easy, ill show you how... *whips out paper*" .
So, yeah, i know a lot of the questions you have may seem stupid and everyone else in the class is doing way better than you (i was in this situation for most of yr 11), the questions...really, really need to be asked. I was afraid of asking questions for most of that year and i suffered. (especially with my teacher i heard him say to some people... what you shouldn't even be in this class if you cant do this or your hopeless)
You can often see the teacher after class and ask questions (or mine allows you too anyway) and go to any lunchtime sessions your school holds, if you have any friends in methods you could ask them too.
Mate, when worst comes to worst however and the chips are down, you only need a study score of 25.
Good Luck
~kingpomba