I do not know what I will be doing ten years from now.

[tufguy]

1) I do not know what I will be doing ten years from now.

2) I do not know what I will be doing after ten years from now.

3) I do not know what I will be doing after ten years.

Please check my sentences.

 

[tufguy]

The first is correct and natural.
The second is not very natural.
The third is possible, but unlikely.

1) I do not know what I will be doing ten years from now.

3) I do not know what I will be doing after ten years.

Is there a difference in the meaning of these two sentences?