Jennifer Lawrence on How Fame Has Changed Her

— -- As Jennifer Lawrence's star has risen, her circle of friends has gotten smaller.

The 25-year-old Oscar winner, who was just named Entertainment Weekly's 2015 Entertainer of the Year, opened up to the magazine about the price of fame, how she protects herself and what's ahead now that "The Hunger Games" series is behind her.

"I can speak from personal experience. People start to feel a lot less guilty when you become bigger or have more money," she told the magazine. "People feel less guilty because it's like stealing a Snickers from [drug store] Duane Reade. People forget about the personal drain or attack that you feel."

As a result, Lawrence is careful about who she gets close to.

"I have a very small circle. The moment I feel like someone is using me or is in it for the wrong reasons, I have zero guilt about just cutting them the f*** out of my life," she said. "My bulls*** detector is phenomenal. None of my friends bulls*** me. Everything in my life has to be real."

Included with her small circle of friends are her "Hunger Games" costars, Josh Hutcherson, Liam Hemsworth and Woody Harrelson.

"There's just crazy s*** you would never tell anybody, but you do because you're sitting on a set together for 16 hours a day," she said. "Josh, Liam, Woody -- we know each other. These people know more about me than anybody on the planet! So it's bizarre for it to end."

But with the final installment, "Mockingjay - Part 2," in theaters now, it finally feels over for Lawrence, who signed on to the blockbuster franchise when she was just 20.

"It does feel over. It didn’t for a while and I didn’t think it would ever sink in, but it has now," she said. "It feels over. And that’s okay. It’s okay to move on."

Next up: Lawrence teams up again with director David O. Russell -- who created her Oscar-winning role in "Silver Linings Playbook" -- for the Christmas Day opener "Joy."

There's also that unnamed script she's written with new BFF Amy Schumer, and much more.

"I'd like to write some stuff that I'm not acting in, too," she told EW. "I want to get back to acting in small, dark stuff. I want to get back into indies. I'd also like to direct a comedy. I have wanted to direct as long as I've wanted to act. I just don't talk about it because I'd rather just do it."