I need more attention from her, and I don t know how to ask for it without sounding selfish. She works a lot so she sleeps alot. Idk?

It's not a bad thing to let her know how you feel in the relationship, but just be careful you don't turn it into an argument. Just talk to her and let her know that you would like her to pay more attention to you. Listen to what she says. Like you said, she works a lot, so you have to try your best to also understand where she comes from if she gets a little upset. It's important that you have good communication and that includes letting her know what you don't really like in the relatioship

Do you help her a lot? Do chores for or with her? If you want more time with her, then you need to lesson her load of things she has to do by doing it for her. Or at least with her. (like doing laundry together, dishes, etc.) And it does sound selfish. How much attention do you give her?

Maybe you should find someone who can give you the attention you need.

tell her that you miss her , need some time together

Lol idk I would say something like hey I know you work a lot but its important that we spent a little bit of time together plus idk I need your love sometimes... Let's do a movie night, dinner night, picnic/ lunch, or idk...