A hearty welcome to you Tweed. As Andrew said, a brief descripion as to the size and shape of your layout and how far you have got with it together with what type of terrain you are aiming for would help us.
If it all runs OK now then you are already ahead of the game
.
If you can manage it, a picture of it would say a thousand words.
I'm sure you'll get heaps of tips and hints from the multitude of posts in this forum. If and when you hit a problem, remember you won't be the first one to have encountered it
so you just ask in here for answers.
Enjoy your membership of this superb forum.
Errol