I want to know what u think about my drug addiction life...has it gone to far..please take time to read & help?

Ok so i dunno where to start....im 18 i have a very good life but it has it downs aswell.....i dont work or go school or college....and everyday for the past 2 years i have smoked weed....i like the real mellow buzz off it and i mostly do this during the day while chilling with friends...i like smokin weed and dont plan on stopping soon.....but heres the thing i cant control anymore for the past year i have been addicted to speed & cocaine.....i do them about 5 nights a week cause i like to party alot mostly party everynight.....i would sniff about 2 - 3 grams a day for the past year and i have to say i do love my lifestyle but its just getting too much now i have a very big group of friends who are always up for a party.....smoking week all day then about 6 in the evening we would go some and drink then about 8 we would start sniffing then head clubbing at 10 go back to a house party then after and keep partying till about 7 or 8 in the morning then sleep till about 3 then back up and same again....i wish i could do this forever to be honest but my body cant handle it anymore.....and i cant stop.....i eat about 1-2 meals a week if even that but its a bit late for me to stop at this stage its like my lifestyle.....your probly sitting there reading this thinkin its all bullshit.....but i come from a rich backround so money is never a problem to buy the drugs.....i have a very big group of friends who does the same thing as me.....i just want to change it all but i really cant cause i dont want to at the same time but for my health i need to....how can i get away from it all i cant just get up and walk away its not like that anymore i depend on the stuff now....if i stop doin it for more than 3 or 4 days im like a nervouis reck and i just cant function right....but the good thing is im good at hiding my high well kinda....like when i was in college we used to do it all the time in the toilets and no one would ever know......i luv the sneakyness of it i think thats the best part.....as u can probly tell urself im not very dertermined to get off everything and move on im just so used to this stuff now its like i need it to survive well i guess that is wat drug addiction is......oh and i cant really go and get help cause as far as my family know i stop sniffing about 2 months ago.....they would flip if i didn stop wen i said i did cause i could of asking them for help but didnt want to ????