My HDD is dead, if so how can I recover my data?

The recovery strategy for a failed HDD depends on the cause of the malfunction. Some situations call for expert cleanroom recovery, while others can be resolved with software.

Here’s a straightforward explanation so you know exactly what to do:
Determine the Type of Failure First

Logical Failure (High probability of recovery by do-it-yourself)
Mechanical Failure (do-it-yourself is not advised)
Failure of PCBs and Electronics
Failure of the Firmware

Homemade Software Recoveries

1. Stellar Data Recovery (the greatest graphical user interface)

Excellent for RAW drives, erased files, and damaged partitions.

Up to 1 GB can be recovered with the free version.

2. PhotoRec (unlimited, totally free)

incredibly strong.

Even severely corrupted partitions can be recovered from, though folder names are lost.

3. DMDE

Great for restoring the structure of folders.

4000 files per folder can be recovered for free each run.