How to enable automatic point, lines, vertex... selection and horizontal/vertical/tangent... lines when drawing a sketch?

I might changed some settings and now, when drawing a sketch, I cannot see the points, lines, etc. highlighted. I cannot draw horizontal, vertical, tangent.. lines automatically neither. It should be just clicking the right setting, but after trying a lot I couldn't find it.

Any help??

Thanks!

SolidworksDrawings And Detailing