BLANK SCREEN AFTER LOGIN

I am brand new to Linux and installed Mageia on low powered machine (HP Stream 11) to use for taking notes and web surfing when I'm working, everything worked & functioned perfectly after install, until I broke everything by inserting a 64GB SanDisk SD Card (formatted correctly) and mounted /home to it due to only having 32GB on-board storage
Ever since rebooting I am met with a frozen blank screen after logging in, after 5-10 minutes it will load the desktop but at a complete stand still
Where did I go wrong?
Do I need to a wipe & reinstall?
Can I still use the micro SD as /home?
Thanks in advance for any advice/help (I hope this is the correct board for this topic)

Ever since rebooting I am met with a frozen blank screen after logging in, after 5-10 minutes it will load the desktop but at a complete stand still
Where did I go wrong?
Do I need to a wipe & reinstall?
Can I still use the micro SD as /home?
Thanks in advance for any advice/help (I hope this is the correct board for this topic)