8 years of coke

Hi, im 24 years old and have been using cocaine since I was 16, it star out just small doses but has increased over the years. I now consume anywhere from 3 grams to 8 grams a week. Its mostly on weekends but occasionally during the week, I only ever take it when im drinking alcohol, I feel like I have some control over it because sometimes it doesn’t enter my head until I have a drink and I dont crave or need it but then once im out with friends and having social drinks its all we do and the sad thing is that everyone is doing the same all my friends and more I know all kinds of people who take cocaine regularly, only the powder though a dont know anyone who smokes it s think that must be an American thing. Anyway more to the point I don’t feel like its harming my body im pretty fit and do workout but I can’t help but think it must be really damaging me internally. Does anyone have any advice or information that can help me?