How do some people that dye their hair a LOT get it to stay healthy as ever?

Heyy i have extremely damaged hair but its just from heat styling tools blow dryers and flat irons etc. what i am doing now is i always use a heat protectant such as chi 44 iron guard and i am using alot of deep condintioning masks to repair my damaged hair i use macadamia natural oil and redken all soft heavy cream they work really well. and try not to color your hair as much and stay away from heat products scrunch your hair and let it air dry for about a month and you should be able to repair your hair. hope i helped! :)