You've been doing it for two years. I believe your basic skills should be solid. I think what you lack may be creativity and extensive knowledge. I wonder if you also pay attention to design in your daily life. For example, watching TV will interest you in this program, and reading books will often be watched. I like to soak in relevant design forums when surfing the Internet. If you don't have these, it means that you still lack a lot and need to work hard. If you have bad skills, you can't do anything well. I recommend you a better design book website, Inspiration Library Design Book Mall. I hope you can break through the bottleneck