using clay bar on new car for salt residue?

[aznbabiegrlx0x0]

since i really dont know much about maintaining my new car's paint ~ i was watching a video on it. and it said that salt is really bad for the paint? at work i usually park next to a big tree for shade but after like a week of parking there i noticed there was a lot of salt all over my car. i thought that just by washing the car ~ that it would be washed off with it ? but now i heard you have to clay the car to get it off? and i never really tried touching the paint after i washed it to see if it was smooth (and salt free)... but today after i washed it. i ran my hands over the paint. and realized it still felt like there was salt all over it. AHHH! i got my yaris around 2 months ago. What do u guys suggest me to do? Should i just wash it once a week then wax it with the turtle ice? or should i start claying it now? i heard claying a new cars paint isnt good for it either? ahhhh im so confused... i wanna keep my car looking brand new for a long time. but I DONT KNOW WHERE TO START....