Screen Shot 2013-06-11 at 9.55.10 AM.pngBy: Bang Showbiz

Robert Downey Jr. wishes he’d had “proper discipline” in his life at 18.

The 48-year-old actor has admitted using drugs from a young age, emulating his father, Robert Downey. Sr – who was a frequent drug user – but feels his life would have been easier if his dad had put firmer rules in place when he was a youngster.

Speaking to The Sun newspaper, he said: “I wish I’d had proper discipline in my life at 18.”

The star credits his second wife, Susan Downey – whom he married in 2005 – for getting his life back on track and encouraging him to create order and future plans.

He explained: “When I finally had some [discipline], from my wife Susan, I realized how much easier things could have been.”

Robert – who claims he started using marijuana at the age of six – has been drug free since 2003 but admits his addiction to substances meant his career took a back seat and he developed a negative attitude towards acting for some time.

He said: “People who understand drug abuse know that you are not dealing with a rational mind.

“My attitude was always, ‘F**k it, I don’t care. I don’t care about fame. I don’t care if I f**k up my career. It’s not important to me.”

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