everyone's designs always suck because the bar for top notch design is pretty high. There is always someone who is going to put your work to shame, and someone to put their work to shame. Knowing this, you can set aside wondering if your work is good, it's not. Mine is not. You can just focus on the top tier designs by world class designers and see if you can even copy them. This teaches you the most the fastest. The worst thing a designer can do is believe they are good at design.