How to interpret SMART parameters?

Question

network hardware

Probably a dumb question, but still. In general, I noticed that everything has recently become slow. I sinned on the hard drive, decided to check SMART, and found that I did not understand how to interpret the results. On the Internet, information often contradicts each other, there are wordings like << a value different from zero means that the disk will die soon, but this is normal for samsuung disks>> Therefore, I ask for help in interpreting the results, and a link to the standard (if it is a standard), with the exact information so as not to climb in the future with such elementary questions
My SMART results

Answer 1

UDMA_CRC_Error_Count 13521 - says that a bad loop (contact)
Raw_Read_Error_Rate/Read_Soft_Error_Rate 125 is not much, but still
disks that write a large value in read error usually write the same amount in Hardware ECC Recovered