What health risks are involved if you take diet pills as a teenager?

i am feeling absolutely terrible about my weight. my parents have these weight loss supllements and diet pills in the house; i want to start taking them, but i don’t know if there are any serious risks involved that can take effect quickly.

so my question is:
if i take, say, 1 in the morning and one before exercising in the evening, how will it affect my health? will it affect it over a short period of time?

I am wondering what diet pills actually work?

I know diet pills are not good for me so I don’t want a lecture please. I just need to lose the last couple pounds I have not been able to lose with diet and exercise. I know how to lose weight in a healthy manner and I have been however I need to get over this hump I have hit.

What are diet pills that a fourteen year old girl could buy without a prescription or her parents finding out?

I want to know what diet pills or an appetite suppressant I could buy at fourteen without a prescription and without my parents knowing. I play sports and don’t want to jeopardize my health so that I couldn’t play. I just want to control my hunger better or lose some weight, I’m only 5 ft. 2 in. And I weigh about 134 I want to get down to about 120 at the least. Can anyone help?