Had an accident today! Have a few questions!!

Moin I had a self-indebted accident this morning on the way to work, it’s all well, it’s all about sheet metal damage. Since it’s my first accident I have a few questions!! 1.My Fiat is fully insured without SB, which means that I have nothing to bear in addition to the upgrade in itself at costs or? 2.What about a rental car for me? I absolutely need a car for work, my insurance will also refund me or do I have to pay myself? 3.What about the loss of value of the vehicle, do I get the refund? 4.Can I possibly regulate what about the company, since it happened on the way to work? 5.The reason for the crash was that I came from a driveway, right in front is a barrier area on which a large trailer was standing so that I had absolutely no insight and despite all the precaution could not prevent the accident! I can make the trailer holder liable because it was standing in the locked area and took my view The police couldn’t say anything! Hope for your help Mfg Christian