As-salamu alaykum - Should I start wearing abaya and khimar or not?

As-salamu alaykum, everyone. Alhamdulillah I'm a Muslim woman and my family is Muslim too. I've worn hijab since I was 13 and they always supported me, mashallah. At first I didn't dress very modestly - tight pants and shorter tops - but over time I changed and now I mostly wear long skirts and hoodies. Honestly I can't imagine going back to tight pants, I really love my long skirts haha. Lately I've been wanting to be even more modest, like wear an abaya and khimar. I bought an abaya and khimar and I really liked how they looked on me. The thing is my family says that if I start wearing abaya and khimar outside, I must wear them all the time and can't go back to my older style anymore because they think it's not appropriate. I don't mind wearing the abaya and khimar all the time - I love it - but I also don't want to put my old clothes away forever. I feel a bit guilty about letting them sit in the closet or selling them, since I still like them. So I'm stuck: on one hand I would love to wear the abaya and khimar outside, and on the other hand I'm hesitant because I still want to wear my old style sometimes. Does anyone else have the same feeling? What did you do? Is it true that once you choose a more modest style you can't ever wear your previous clothes again? Any advice, tips, or personal stories would be really helpful, insha'Allah. Sorry if my English isn’t perfect, I hope I explained okay. JazakAllah khair for any help.