Personally, I wouldn’t make a change.
You’ve found that carnivore gives you some immediate benefits which have improved your life.
You don’t know, at the moment, that there’s even cause for concern with your cholesterol readings.
There’s no point running tests now, or even in 6 months - you need to give this way of eating chance to settle. Results at this point will just show a transition period, which isn’t representative of either way of eating.
Give it 12 months, and then if you’re still concerned, think about having the tests done then.
There’s no saying that you will 100% inherit the problem your mum is experiencing - even when things have an hereditary element, there’s no guarantee. And frankly, she’s been eating a different way for all of this time, and she’s got this problem - so that’s anecdotal evidence that her solution might not be correct.
Finally, as anyone on here will warn you, you have to really choose your audience when it comes to sharing information about the way you eat - purely because keto and its variants have been long demonised in the press, and there’s lots written here about why Big Food and Big Pharma want to see keto et al derided.
I’m sure your mum loves you and her reaction is from a place of concern, but it sounds to me as if you’ve carefully researched this way of eating. In contrast, the people you tell will just have the knee-jerk reaction of thinking that it can’t be good for you because of what they’ve read in the press over the years, and when they express their fears to you, it causes you to doubt yourself.