If you want to learn to do it yourself. . . I think this challenge is quite big. After all, you should learn to make patterns, choose materials and bring your own sewing machine. Craft also requires you to be skilled, so practice makes perfect. I need some theoretical knowledge to help me solve the problems of pattern making and clothes structure. In short, this kind of thing is quite difficult. I wanted to learn myself, but I gave up when I knew it was difficult. . . If you are afraid of being expensive, you can join the group (of course, it is a better kind). There will be tailors or ordinary tailors in the group, and the price will be lower. . .
I summed it up myself, hoping to help you ~ ~ ~