weird question

Ultimately, you want to maintain a deficit, but to do it while getting your appropriate nutrients. However, you don't want to be eating badly, as that can have other consequences. It depends what you consider "unhealthy". If your fat/sodium/calories/etc are within range (give or take), then you're okay! Try to get your fruits/veggies in, and take a multivitamin. No one's perfect in their eating

Can you give some examples of your unhealthy foods??

But the short answer is yes, you'll still lose, if it's short term. I eat at restaurants and slip up every now and then, but I'm still losing. In moderation, it's okay, usually! Remember that sodium (often found in "bad" foods) adds water weight!

There are people who lose weight eating smaller amounts of unhealthy food and I think that's fine for short term results. I think in the long term and in terms of health though that eating healthy foods is better for you, but I also think it's also about doing your best with what you have.

The way you worded your post implies that maybe you are still living at home with your parents or living with someone who does the cooking? I'm actually the same way and it's been a difficult year for me trying to get everything under control for myself. My parents eat entirely different kinds of foods. My dad is happiest with meat on a sandwich and some kind of potatoes on the side, maybe some rice or a few vegetables, drenched in olive oil or some kind of dressing, multiple servings of course. He also loves his desserts. I just couldn't live like that so I started making some small changes. Preparing myself something extra on the side to replace the unhealthy portions of what they are eating. If they're having some sort of chicken, I'll ask for them to cook it without the sauce or melted cheese and will have it with something I have made. Maybe something like this could work for you?