To cut ties with a friend

[SensitiveOverthinker]

This is going to be a long one I'm afraid....
My friend and I have been good friends since we were 3, we are now in our mid/late 30s. We were each others bridesmaids, she is godmother to my son. Before children we would hang out most weekends, and our hubbies were good friends also.
When my son was born, she was absolutely brilliant with him. She herself had some fertility issues and I tried to support her as best I could. I fell pregnant again, and shortly after that, she did too. Everything really changed after she had her son. She understandably was very anxious (i wont go into her background as thats not my story to tell) I think perhaps as I was on baby 2 I was a lot more relaxed about things. She would make comments to me about the way I did things. Constant little things, that I would brush off at the time, but would bug me afterwards. An example was I said "my daughter has been really cuddly this week, its been lovely" and she replied, "its probably because she misses you so much whilst she is at nursery" her child is in care with her mother 4 times a week whilst she works.
I think the problem can be is that she is very opionionated and judgmental. It makes me feel so low. I feel like I am walking on eggshells around her. I look at other friendships I have and no one else makes me feel like this.
I plucked up the courage to talk to her at Christmas about how another incident had made me feel, and how I felt upset that we rarely get together anymore without me instigating it. She completely gaslit me, even rolled her eyes at me and told me I was too sensitive.
I don't really think I can convey how I am feeling without sounding petty. There is so much history to this and its already a long post.
I know that if I met this friend now, I wouldn't try and foster a relationship with her. As we have grown up we have different interests.
I guess my question is, has anyone here had a really long term friend that they decided it was just best to cut ties with them? And if so, how did you do it? And do you have any regrets?

Just lessen contact / put her on your periphery. I have periods where friends upset me/piss me off. And yet you might meet up and have a wonderful time with her every now and then.

Although wearing, I don't think little digs are enough for NC. I'd just stop thinking of her as your close friend, focus on your more compatible friends.

OP, you say that you almost never get together any more unless you instigate it, so it’s possible you’ve both drifted from one another, and she won’t notice/mind if you drop the friendship.

This.

I cut off a long-term friend from my uni days. Like you, I think the friendship had become more about shared history than any real current connection or things in common. She’d always had a selfish streak, but it had just got worse and worse. She was only interested in herself and what she wanted to do; how something could make life easier for her. She always wanted to be in with the “in crowd” and I got the distinct impression sometimes that I was a poor substitute for the cooler, more exciting friends she thought she deserved.

Despite thinking she should have been off doing something else with someone more interesting, she did NOT like it when I made plans that didn’t involve her. The final straw was when I went on a night out with my old colleagues and didn’t invite her along. She was ranting about how I was treating her like shit, why did I care more about old acquaintances than a close friend… I’d had enough. I blocked her on all channels.

She left me a voicemail (you can still do that when you’re blocked) completely downplaying the whole thing and saying she hoped to hear from me soon. Seven years on, she’s still hoping. I have no regrets.

Thank you so much to everyone who has taken the time to write me a response. It really means a lot to me. I've found it really hard to talk to anyone about it. I've read all your replies and thought about it over the weekend. I have decided just to go with the slow fade. I dont think there is any point in trying to speak to her again - the best thing to do is just distance myself and the let friendship fade out. I dont want to block her or fall out or anything, as we have mutual friends - but it's time to put some distance in. Thanks again