I'm trying to use less hair relaxers but......?

I still want my hair to be straight when I do it. Do you all have any suggestions?I'm trying to use less hair relaxers but......?
Ok this is what I do. I wash my hair every week and blow dry and flat iron it. But when you do flat iron it the best flat iron to use is a Chi. When I was in Atlanta I used my friend's flat iron called an FHI and that also worked. Then after a week I do it all over again.





And say I get my hair done in may...I would get another relaxer put in it in about two to three months depending on what condition it is in.