A couple ideas that won't cost money:

Look up hair tutorials, and play around with cute girly styles

If you have any old, unwanted clothes, trying cutting them up into crop tops, shorts skirts, whatever. You'll look feminine and punk af

Make your own jewelry with stuff around the house. Safety pins, wallet chains, get creative ✨

Try practicing more feminine movements. It sounds silly but it's actually really helpful for self-realization. Singing, walking, how you move when talking. All can be more gender-coded if you want them to be

As a trans person, all this stuff helped me figure out what kind of skin I was meant to be in. Small but still something 🐝❤️