Why is it that other times I wear boyish clothing and be a guy, but sometimes I like girly stuff? It's ok that I dress like this right?

It's ok to express yourself in any way you wish. No one can tell you what's right or wrong, your clothes and the things you like should make you feel good, what other people may think doesn't matter. It doesn't necessarily have any implications of your gender identity - the way you express yourself does not determine the gender you feel you are inside. But in case you feel like questioning your gender and possibly consider if you are non.binary, that would be ok too!

Ask yourself, and try to be honest: do you like girls' clothes, or do you want to be a girl? If you feel like deep down, you were meant to be a girl, if you feel like a girl, congratulations! You're in the transgender closet. If you just find their clothes interesting, you can wear girls' clothes and still be a boy. Society tells boys they should be masculine and be a human embodiment of testosterone and power, but that's not true. You can be whatever you want, it's your life. Wearing girl's clothes doesn't make you any less of a guy. Gender branding of clothes makes no sense, feel free to shop in the women's or men's section, and if people look at your weirdly, that's their problem.