Minecraft keeps crashing on me and I dont know how to fix, I am very VERY upset about this issue because

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What I expected to happen was...:
Describe what you thought should happen here
that minecraft would actually work because I actually BOUGHT it
What actually happened was...:
Describe what happened here
mincraft crashed
Steps to Reproduce:
1. Put a step by step guide on how to FIX the bug here
2. ...
3. ...