What can I do to make my dry hair silky soft?

I have really dry hair from so much straightening and washing. What should I do to make it healthy, silky, shiny, and soft again?What can I do to make my dry hair silky soft?
- Do not wash your hair every day. Try every other day or every 2 days


- When you wash, do not scrub too long or hard, and use a warm- not hot- water. Use conditioner


- Keep your showers shorter- the hot hair and steam can dry out the hair.


- Avoid using heat (straightening, curling, blow drying), but when you do, make sure to use a heat protectant. Great ones can be found on Sephora.


-Use a deep conditioning hair mask once a week.


-Try a home made mask of avocado and some milk and a touch of olive oil. Apply to damp hair, let it soak for about 20 minutes, then wash your hair regularly


-Avoid brushing hair while wet with anything other than a wide toothed comb- it can break your hair


-Avoid going to bed with wet hair, so try to shower early so you can go to bed with air dried hair


-Eat a healthy diet including healthy fats of nuts, avocadoes and olive oils.