Ro-ro skips or builders merchants seem like a good fit to you, but you’ll be flat out from start to finish.
I don’t know much about day work to be honest, as I wanted to and did go tramping right away.
Factor in newbie time to begin with as well - you will take much longer to do the same amount of work as experienced drivers do. You’ll just have to ■■■■ that up, the only way to get faster is with experience and I don’t mean driving faster, it’s all the other bits.
If you want to drive lorries for the money, you’ll have a bad time. If you want to be a lorry driver, you’ll more likely find your niche in time.