Hi and welcome!

I can give maybe a bit of help here. I too lost my mom at a young age (16) and was always, even before then, rather tomboyish. I liked boyish things and still to this day feel uncomfortable and skirts and dresses.

Do you have any sisters? I have an older sister and stepsister who are both quite different from me-- sorority girls, one was prom queen, etc. Though I didn't want to emulate then completely, I did pick up on some things from them-- how to do my hair, makeup, clothes. How to act around boys.

If you don't, that's okay! Because nowadays we have the internet! So if you don't know how to do hair and makeup, YouTube is a great place to learn. As for dressing, Pinterest and /r/femalefashionadvice can be great for inspo! As a sidenote, I still don't wear dresses and skirts as often as I should-- but I make sure to wear form fittings clothes that show off my figure. Stretchy tight jeans are the best!

I had to myself how to cook. I was pretty bad at first. But I just pulled recipes off Google and kept trying. Now I can pull things together well enough, and my SO likes my cooking but I'm still improving!

Try and pick up more feminine hobbies. Female friends are important too! Like you noted, drop the hoards of male friends. It just really doesn't send the right message.

Attitude/personality is the last thing. Practice being graceful and poised. Make sure your posture is good and you smile a lot. This may take time if you're not naturally inclined!

Keep reading from the women here and you'll learn a lot. I was very much in your shoes once and since dropping the feminist crap I've never been so happy. And I think you'll see the successful relationships that women have here and it is truly inspiring!

Lastly, if you want more reading, there's a book called the surrendered wife that is supposedly really good.

Good luck! I hope that helps a little.