Help I need engine advise!

I was driving and it kept over heating, so I kept letting it cool down then adding water then I was driving and blue smoke came out the back and it lost power till it came to a halt and the engine wouldn't even tick over or start. I had it recovered and it now starts but blue smoke comes out of the exhaust and the engine is smoking smells like a burning oil and the water is also leaking some where please please help! What do you advise and how much (guesstimate) will it cost me I payed 1500 for the car and in 3 months boom¬it does this I am very angry and don't have much money all advice is helpful thanks for your time and your advice I'm in Plymouth (a lot of friends said oh its a head gasket but they couldn't hit the ground if they fell on it. Thanks again I hope someone can help ! Also th oil doesn't look milky