Why does my A/C Compressor keep going bad?

In mid August, I changed the A/C compressor in my 2003 Honda Civic EX because it was making a horendous screeching noise every time I turned on the A/C and eventually, cold air stopped coming out. A couple of days ago, my car started making the same screeching noise when I turned on my A/C. Why does my A/C compressor keeping going bad? Is there a different part in my car the could be causing my compressor to fail?

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