i've been with my girlfriend for about 9 months, but I move a lot for work, so we sometimes live together and sometimes don't depending on the time period

she's very inexperienced (first relationship) so she's facing all the insecurities we all have with our first times..she compares herself to my exes, she gets anxious if I don't reply straight away, and so on

classic relationship noob, exactly as I was in my first relationship. Very relatable, as I can see my 15 yo self in her (even though she's much older) so I don't make it a big deal, I never blame her, I just talk her through her insecurities and usually we solve every discussion peacefully

the problem is that all this assisted introspection she's doing is taking up so much of my time, it's getting ridiculous..to give you some numbers I am talking an average of a 4 hour discussion every day or every other day

now, I'm glad to make her feel better but my full time job is really demanding and I often work overtime and I need my 8 hours sleep.. so often I end up either working less than I would want to, giving up time I would dedicate to my hobbies or actually compromise my sleep due to late night discussions.

this is taking up so much time and as much as I like helping her, I am afraid this might hold me back in my career. I hope I don't sound like an asshole for prioritising my job..

Anyway.. I'm pretty stuck is there a way to make discussions shorter?

PS i'm also being inconsistent by telling her she can alway talk to me when she feels something is wrong, cause we can solve it together, but then it takes up so much time i kinda regret it

EDIT: we are both in our twenties and in spite of her lack of experience she's actually older than me.