So that’s one answer! The short, easy answer is that you will struggle unless you know someone with some influence. But it’s NOT a lost cause. 18 year old truck drivers are not new - but unusual. For donkey’s years, we’ve had 18 year old bus and coach drivers - I was one - and they consistently get work.
So, before the barage comes advising you to think again, my advice is to get on and do it if it’s what you’ve set your heart on. But don’t expect a fantastic job immediately. You may well have to start on something a lot smaller than you’re qualified for and work your way up.
Be prepared to accept Van and 7.5 tonne work in order to gain experience.
Those that have a C licence and are only prepared to do C work are unlikely to get a chance especially at such a young age.
We are training a 19 year old lady at present who has a job to go to when passed so it is not impossible…remember the more doors you knock on the nearer to a yes you are.