The storm broke my fence

Please could someone give me some guidance as to weather there is any easy fix for this or whether I'll have to build an entirely new fence? I believe this fence was build around 2010, when the house was originally built.

If I have to rebuild the fence, will I have to do it from scratch or can I just fix some of the fence?

What is the cost going to be if I hire someone to fix it?

Is it a job that can be sorted by one man, one hammer, and a little bit of common sense?

Andy guidance or incites are appreciated as I have basically no knowledge in this area at all.

Thanks in advance