Why “professional drivers” ?

Moin my name is Steve and I have completed my apprenticeship as a professional driver relatively well. I have the adriatic certificate of certificats stacker license loading crane etc. Unfortunately my training company (small forwarding company) could not take over me so I had to look for a new job which was not so easy I then worked for about 5 months at a parcel delivery company to get something into the job first the problem was only the job was total slave work up to 12 hours a day and then not even paid. My question is how should I continue to do now everywhere I see only soup company that is all yielding comes still that I am only 21 and probably many big companies think the can not find a job until I have found a job? A new apprenticeship ? I have no clue