comments:
If your clothes are more than two sizes too large for you now, you'll need to take them apart, press, recut and resew them. It's plenty of work, I'm sorry to say, but trying to just take them in will result in wonky garments that you won't want to wear. I'm going to recommend this book because it's so clear about creating blocks and making garments from them: https://www.amazon.com/Freehand-Fashion-Learn-Perfect-Wardrobe/dp/1910496146 A pattern block is a flat representation of your body's shape in two dimensions, so that is ideal for recutting garments to make them smaller, but otherwise unchanged. Start with your least favorite or simplest garment, because the first one may not come out well. Or thrift a garment to work on. Learn to preserve the complex details such as collars if they still fit you, and cut the garment smaller around them. This is a hybrid approach between recutting and taking in a garment but it will give you an idea of how the process works: https://www.itsalwaysautumn.com/take-size-shirt-right-way.html Her sleeve (armscye) seams look stiff because she didn't take the time to press them, and that does make all the difference. Later this book, a fashion school text, will be useful to you, but at this stage I fear you'd only get lost in the details: https://dn720006.ca.archive.org/0/items/sewing-books/Pattern%20Making%20for%20Fashion%20Design%2C%205th%20Edition%2C%20by%20Helen%20Joseph-Armstrong.pdf Make sure you have a few seam rippers because you'll wear them out, and make the task a pleasant one by watching or listening to something you like while seam ripping, since it's essentially a boring task. When you get good at this process, your revised garments will fit better than the originals did. Good luck.