i'm a bit obsessed with open-source software

• LibreOffice- Literally Microsoft Office but open source. F//ck Microsoft
• AutoHotKey my beloved - Easily script keyboard shortcuts and a lot of other fun stuff! I use this so I only have to type 4 letters to autotype my full name, email, and other stuff but there's a LOT you can do with it.
• KeePass - Stores, encrypts, and generates passwords. Just make sure you don't forget the master key.
• DeskPins - Pin any program over the other windows on your desktop. Good for references, notes, etc
• Anki - Make your own flashcards! Spaced repetition is scientifically proven to be epic!
• Notepad++ - Notepad but not ugly! Also good for coding!
• Krita - OPEN SOURCE ART PROGRAM BABY YEAAAAAAA
• Capture2Text - Screenshot text from an image and turns it plain text. You can download OCR and translation for many languages.
• Blender - Try learning 3D it's fun and definitely not painful