I joined daily UI challenge (http://www.dailyui.co/) in March 2018. Basically, It shoots me an email and asks me to design with a prompt everyday. It's pretty fun because I could explore lots of ideations: styles, colors and graphics on these little pieces of work. Some prompts are popular, like sign up, landing page and user profile, which I have some experience, while some are interesting like calculator, checkout page and app icon, which is a good way to let me try variety things in a short time.