You can straighten your top-stitching, neaten your seams, and smooth out your darts, but if the finished garment doesn’t fit your body correctly, none of those will trounce fit.
You bought the perfect fabric, cut out the pattern accurately, stitched the pieces together precisely, and yet…it looks like a dog’s breakfast on your body. Sloppy shoulder lines make you look like you are wearing your husband’s jacket. Straining at the waistline brings a sausage tied in the middle to mind, and a too-high crotch seam causes a bit of “lift and separate” where it is least attractive.
It’s time to take charge of your fitting issues, ladies. I for one vastly prefer an orderly approach to problem-solving (and fitting IS a problem), and IMHO Lynda Maynard tackles fit in an extremely sensible manner. Top down. Big to little. I just spent 3 days watching her fit every conceivable body shape during a hands-on class, and it was magical. Helping women of all ages, sizes, and body types achieve better fitting garments is her passion, and it shows in all she does.
If you can’t get to San Francisco to take one of her classes in person, Sew the Perfect Fit on Craftsy.com is an excellent online fitting tutorial. (Bonus: you can watch the class as many times as you want – it never expires!)
Do yourself a favor and invest in learning more about fitting. You will be happier with your sewing results if you do.