@Rex4623 Firstly a warm welcome to the MSFS forums.
I am sorry to hear you are having this issue.
As this is not the thread to discuss this particular issue with MSFS not starting, can I suggest you visit the dedicated thread where others have experienced or are also experiencing this issue, to see if you can get some assistance there:
I suggest you post in that thread if you need more help/ advice, after reading through the thread.
I hope you get it sorted soon.