I've been editing Video for two years on my 13 inch MacBook Pro and Now Premiere Crashes Every time

Being a user to user forum many people here suffer the same surprises of technology changes ( software and hardware and updates etc. ). I personally want to stay within the limits of what my computer(s) can do cause I can't afford to buy new faster more powerful stuff. I'm kinda stuck with what I got for the rest of my life.

I planned it that way. I only deal with full HD and short videos ( like 1 minute maybe ).

But that's me.... and I'm happy as a clam using cs6 and resolve with 17" on laptop and 27" or whatever on edit computer.  Just be patient and backtrack to version that worked and go for a walk or something... people love you.

🙂

software updates often require higher system requirements and that may be the issue here.   New features put greater demands on your computer.

https://helpx.adobe.com/premiere-pro/system-requirements.html

If the previous version of premiere was working for you, I suggest you revert to it...  

Honestly, I don't think Adobe cares whether you buy a new mac or not...  They don't make any money off of apple computers...  

If your mac meets the system requirements, you might try resetting your preferences and clearing out your caches...