Voice Hurts

Hello, whenever I sing my voice hurts. It feels sort of strained. I'm not exactly sure why. Is because of the way I'm exercising, or is it something else? My voice also sometimes sounds a bit raspy. I know some singers voices are natrually raspy, but I'm not sure if it is how my voice is supposed to sound, or if that is the effect of my voice hurting. Thank you.

Please check out the following for some helpful info:

https://www.30daysinger.com/blog/how-to-reduce-vocal-strain

https://www.youtube.com/watch?v=s6HRdzfpT20

https://www.30daysinger.com/blog/vocal-nodules-preventing-injuries