When you have some down-time this summer, take a look through the 2018 Honor Roll: Ed-tech's Must-Read K-12 IT Blogs. If you find something you like, look for subscription information. On most sites you can sign up for email notifications or RSS feeds. There's some good stuff out there! If what you learn is in line with your T-TESS goals, keep track of what you do and that can be documented as professional learning through Strive.
As the end of the school year approaches, if you use Google Classroom, you should consider how you want to clean it up to prepare for next year. Eric Curts at Control Alt Achieve put together this list of 6 End-Of-Year Google Classroom Clean-up Tips.