How to lose weight?

Hi, I know that’s a general title but I really want to know. I’m 17, about 5’4, and am overweight. I’ve been trying to start working out and eating better but it’s hard to actually lose the weight and eat better because food is kind of my comfort. My parents are both heavy set along with many people in my family but I just want to be healthier. I went to the doctor recently and was told that my blood pressure is normal and I’m “healthy” but I just feel like I need to get better. Any advice is appreciated and thank you for reading.