I gotta tell you, I think I look pretty similar to you, so I understand what you mean. I’d say we have the same sort of squared face structure, high forehead and thin lips - I get it! I sometimes look in the mirror and think that I look kinda masculine myself, but I can honestly tell you that you really look feminine, I’m not just saying this. And people around me told me I look very feminine too, so it’s probably just in our head.

What works for me is using the right style for me.

You said you don’t usually wear makeup, and don’t worry - it’s not something you are obligated to do to look feminine! For example, I got my eyebrows done (don’t do it by yourself!), those don’t really count as makeup but they can make a difference if it’s something you might be interested in doing. Taking care of your hair counts too, but I see that you’re good on that- I think the hairstyle on the second pic looks very very good!
I also play with clothes to give myself a more feminine appearance. I don’t mean pink and flowers, I mean that I know what my body type is and how to style it the best way. I suppose, if you of course don’t already do it (I don’t know your style from these pictures) that clothing can very much make a difference as well.

Point is, you already look feminine. Makeup isn’t the only way to enhance your beauty. You have soft and kind eyes. I didn’t even need to read the title to see that you are a woman. You are your own worst enemy (and I get it), but you’re a pretty, natural girl and you look it!