I definitely understand. I am 22 and I have trouble finding patterns that I like. I LOVE the patterns by the Zephyr girls found here. I am currently working on their pattern called Ms. Marigold and it's easy to knit and it looks adorable (I omitted the ruffle).
I also love the patterns from the book "Fitted Knits" by Stephanie Japel. There are some pictures on Ravelry of the designs, but you can also look at a few here. Interweave Knits magazine often has some pretty tops as well as Knitty.
Generally, I have had to do a lot of looking, but I have found a few cute patterns. I am very picky about my clothes, so I don't want to waste my time making something I won't wear.
If you're not on Ravelry yet, you should sign up. It's an amazing resource for finding patterns. There are groups of knitter's in their 20's and I raid their patterns too.