First, I took a Design for Developers course by Sarah Drasner from the FrontendMasters. It gave me some inspiration to implement alternative approaches in the design of web applications. I have also refreshed my knowledge of Grid and CSS in general.
Then I had a brief (very brief) look at the Svelte course by Rich Harris himself. I find Svelte to be a very promising and intriguing framework, and I will definitely go back to learn it when I will have more time.
Further, I was interested in React Native because of its flexibility and the option to develop both Android and iOS applications at the same time. That way, I started with a React Native course by Kadi Kraman. This course was good enough for starting with React Native, but on the other hand, it was too short and left me with a lot of questions and concerns. For that reason, I bought an Udemy React Native - The Practical Guide course by Maximilian Schwarzmüller, which is much more complete and comprehensive.
At the moment, I have passed about 20% of the course (it is 30+ hours long). I also made my first React Native App, which is a to-do app, just like my last React project. I will try to develop it during the course, and my goal would be to make a simple and useful application with a clear design. Currently, the code of the project can be found on my GitHub.
Site (mirror on github): https://villivald.github.io/proj/