looks like you have a line at the limits, Notice the FEC and CRC events only having been connected 8 minutes.
The Downstream attenuation is high which is pointing to a very long line.
Here is someone in the same boat with a few suggestions
Is you line noisy? Crackles pops etc.?
Are you connected to the master socket with ADSL filters or with a filtered faceplate?
Have you tried disconnecting all the phone wiring and just connecting to the master socket in the house and see if this improves.
Unfortunately I expect you are not going to get Superfast as you are too far from the Cabinet - Sorry.