Japanese Hair Straightening

Since I came to japan my hair got horrible.
Too freezy!!
Last summer I tried Japanese hair streight at hairsalon, it was good.
Little by Little my hair was growing so these part were freezy TT
I loose so much time fixing my hair before going to work so I thought to streight it again.
I heard about Japanese streight cream that I can do at home so I gave it a try days ago.
It's really not good TT
My hair still freezy and it got so dry more than before.

I really wanna streight hair coz it save me much time.

I wonder if I can still go to hairsalon and do the hairstreightener or it's bad to do so after i already did it at home?

What was the product you used?

I used proqualite.