Yaela, maybe I can help you understand it from a purely aesthetic perspective. Maybe the reason that sheitels look so natural and beautiful is to encourage women to cover their hair and not hesitate to do the mitzvah. Even when I first got married 36 years ago, my sheital macher was doing her best to make my sheitel look as natural and as much as my own hair as possible. This was to make me feel comfortable wearing a sheitel and not feel awkward at work. Every year the sheitels look and feel more and more natural and every year more and more young women are choosing to cover their hair. Just as you said, your mother didn’t, her mother didn’t but your sister does, and you do partially and are thinking more about it. With such beautiful and comfortable options available it makes the choice more palatable.
Yaela, when I was a young bride, going to the mikvah was so awkward and uncomfortable. Well we have come a long way baby. Today mikvahs are like spas, clean and gorgeous catering to the needs of the women. They try to make the mitzvah as welcoming and comfortable as possible. The point is understanding that the mitzvos women have to do are not so easy for all women and women should feel proud and happy to do them.
If you put a shmate on your head that makes you feel uncomfortable why would you choose to cover your hair? Yes it is the rule and yes it makes your husband happy. But if you are not happy doing it, how will that play out in your shalom bayis? But if you can do the mitzvah happily and proudly with a beautiful sheitel and feel good about yourself, feel comfortable in it then eventually you will be doing it for yourself and not just to make your husband happy. How much more will your husband be happy, proud, respect, appreciate and admire you for you performing the mitzvah for yourself?