partner said they might be trans

hey so my partner said she might be trans and i’m so okay with that!! i’m being supportive and all that and she seems to really wanna become pretty and transition into a female and i’m willing to help her out but she says she’s hesitant because she’s afraid she won’t look good and it’ll just look unnatural on her. she’s also just pretty scared in general of coming to terms with this. is there any advice i can give her?