How to quit smoking at 16

As the title says, I'm 16 years old and I am addicted to cigarettes. I experimented with it when I was 12 years old but a serious life event happened when I was 13 and its been daily since then. Ive been smoking about 5-6 a day but some days ill only have one or two. I used it to cope and noone found out until my friends did a month or so ago. I have tried countless times to quit and the longest I went was 2 months. I really don't know what to do...

Any help is greatly appreciated