Why is comfortable lingerie seldom beauty and beautyful one seldom comfortable and at a high price too?
If you want both, you can find some good sewing patterns at the web, no matter if vintage or modern. Even free patterns can be found on Internet, if you look for them.
I had to think hard, if I could do it and finally I began to sew my own lingerie. It´s not perfekt now, but comfortable AND pretty and always good enough for me.
For your selfmade luxurious lingerie your can also use some old clothing, that´s made of silk, fine linen or cotton. For the Projects, you can see in details in the pics , I cut up a silkskirt I seldom wore and two unloved satin-silk tunics. NOW I love them much more!