Steam games and Steam closes by itself.

Hi, so for the past few weeks I've had a really annoying problem. To explain everything, I had come back from a long, tiring workday, and to unwind a bit, I thought, "I'll just play a round of CSGO." So, I normally started Steam, launched CSGO. After a few minutes of loading, CSGO closes itself without any error message or anything. So, I went to several forums, tried everything, and tested everything, but nothing works. The problem persists even now, so if anyone has a solution for this problem.
HELP ME