How do I burn fat while gaining strength, NOT muscle?

Recently, I have started lifting weights and am currently benching 55kg max. I work out once every two days, using both machines and free weights. I lift with weights that allow me to do only 6-8 reps as I am trying to increase my strength. I only want to gain as little muscle mass as possible while increasing my strength (Bruce Lee style). This is because I am lifting weights and trying to get stronger to help me with sport (soccer in particular).

Recently, I have also begun doing lots of cardio and core work in order to lose body fat, strengthen my midsection, and develop six-pack abs. Here is my problem:

I know that in order to lose weight, you need a calorie deficiency, but in order to build strength, I’m not supposed to limit my caloric intake as this energy is needed for muscle repair.

I have looked at countless articles saying that to burn fat I should eat less, but on the other hand, in order to gain strength, i have to eat more. This is really confusing me at the moment, so can anyone please explain to me how I can:

- build muscular strength, NOT size
- lose body fat

…at the same time.

I know this can be acheived through proper diet and adequate exercise, but I have no idea how much I should be eating, or how much i should be exercising.

Thanks heaps in advance.

(If this is required, I am 16, 174cm, 132lbs, and have very slightly visible abs.. probably around 11-13% body fat).

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