Chelsea Handler reveals the A-list actress who once reprimanded her at a party

Chelsea Handler recounted a memory from the past that caused her to take a moment and reassess.

The Chelsea Lately host, 49, was at a party at Jane Fonda's house in 2017 when the legendary actress took her aside.

The Grace and Frankie star, 87, told Handler that she was behaving poorly and asked her to stop.

Handler was humiliated and excused herself to find a bathroom.

'I went to the bathroom mirror at her house and looked at myself, and I was like, 'Okay, you have two choices in how you're going to handle this,'' Handler told Parade.

'You could be defensive, and that just means she's right. Or you can take it in and realize that she did not have to sit down and take the time to tell you this,' she recalled.

'She could have just avoided me for the rest of our lives and never hung out with me again and just been like, 'Okay, Chelsea's badly behaved, I don't want anything to do with her.'

'But she set an example for me that day. That was an act of love.'

Handler turns 50 on February 25 and with age has come the wisdom to check herself and not get so worked up over things.

'I know to remove myself from a situation if I'm not going to be my best,' she said.

'I don't lose my sh** like I used to when I was younger. It's not a big deal if something doesn't work out. It's not a big deal if the guy I'm dating breaks up with me; it really isn't,' she said. 'I'm a tree now. I'm kind of unshakeable.'

All of Chelsea's new found zen came at the cost of years of therapy. In fact, she entered therapy – somewhat reluctantly – just a few months before the Fonda incident. 

She had a panic attack on the set of her short lived Netflix show Chelsea and realized she needed to sort some things out. 

'My confidence and my bravado and my tough exterior that worked for me so well and for so long in the years of Chelsea Lately—it's like gas that you run out of,' Handler explained.

'That anger and that drive, that got me to be really successful,' she continued. 

'But there comes a time in your life where whatever works for you stops working for you, and all of a sudden you have to take a look at what you haven't examined, which is usually your inner life and what happened to you as a child.'

She realized she had repressed feelings about her brother Chet dying when she was nine, something she refused to acknowledge or talk about until she was 40.

It also coincided with Donald Trump's election, something that chafed at the die-hard Democrat's liberal heart. 

'That coincided with my new talk show on Netflix. It was a perfect storm of instability, and I had never felt unstable before in my life, in that way,' Handler said.

And like any good comedian, all that therapy gave Chelsea a lot of new material to mine for her stand up sets and her book Life Will Be the Death of Me.

As she gears up to celebrate turning 50, Chelsea will once again hit the slopes near her Whistler, Canada vacation home in some state of undress with at least one of her dogs in tow.

She's done this every year for several years now, but she hinted that 50 will be a bit different. 

'It's going to involve more than just me; it's going to involve a lot of people and hopefully lots of pets,' she teased. 

'Everyone keeps asking me [how I feel about turning 50], and I feel like they want me to say something like [sounding slightly bummed] 'I can't believe I'm 50,'' Handler said. 

'[But] this is awesome. My life is exactly what I hoped it would be—it's more than I hoped it would be.

'I had no idea what the possibilities were or that I could live a life like this and feel so free.'