[Help] Making overlays that look good?

I’m trying to make a road using overlays, but it looks terrible. I have a bridge and the road goes off from that, but I really can’t get the damn overlays to look good. How can I do so? I’ve been looking all through this

but I can’t find shit to fix this.
EDIT: Also… if theres a better way to make roads, please share xP

Just use textures on a brush. Don’t use overlays unless you have a need to resize a decal.