I'm not sure I'm qualified to give you advice since I'm not out to my parents yet. But You should embrace the things you like. Regardless if others see you the way you want to be seen. Honestly, I became a lot happier when I stopped caring about my gender and just liked the things that I liked. I used to strongly identify as FtM. I still do. But I felt like there was so much more pressure on me to look like a dude, act like a dude, only like dude things. And it made me miserable! because I like feminine body language. It's what I'm used to and it isn't as tiring as trying to always keeping my shoulders squared, always walking like this. I was so worried about whether or not I was passing.
I finally took a step back and looked at the big picture. Except for times when female pronouns were used, I often forgot I even had a gender. I've always dressed more androgynously and more masculine. And I dressed that way because I wanted to. Not because I identified with the gender that wore those things. Because I can still rock a flowery dress like nobodies business. I still like my nails painted. (granted, they're usually black). I came to a place where I realized that I didn't want to change. Who I am as a person has nothing to do with what sex or gender I am. And you shouldn't let your gender identity define you.
To some people, transitioning is like finally being able to breathe. I'm not devaluing that experience for anyone. But sometimes, people put too much emphasis on their gender. Cis boys freaking out over the littlest bit of femininity, thinking they're trans which they aren't! That's just who they are. Men can be feminine despite what decades of social conditioning say.
I know in the deepest part of me that I am not cis. In fact, I'm not sure what I am. The closest I can pinpoint it is androgyne transmasculine genderqueer. But it becomes clear to me that I can try all I want to be able to call myself something; to name or "label" what I am. It was important to me for a long time. But now I just don't care. I am me, and nothing is going to change that. Not my gender, not my parents, not every transphobic, homophobic person in the universe could change me unless I let them. So like the things you like. Wear your nail polish proudly. Wear a dress if you want! You know who you are. And if that isn't enough, we know it too.
There is a chance your family will never understand. Even if you went through HRT and corrective surgery, they might never understand. That's a ship a lot of us are sailing on. You aren't alone. Sometimes, you can chose your family.