You are asking an important question. I don’t think it’s a matter of “getting past” it. I think you need to take the time to clearly think about your values and priorities. Women can and do have both an important career and a relationship. But you are right that it often takes a lot of juggling. Having clarity about what will give you joy over the long term will hello you make the choices now that will help you get there.
I was so glad to see that your boyfriend is supportive of your goals. I wonder if you have been trying to solve your dilemma without sufficiently involving him. Perhaps the two of you can talk about how much time you need to spend with him to nurture and enjoy the relationship while you also work on your career. My guess is that he would also appreciate having some clarity as he pursues his own work goals as well.
I wish you well.