As far as ends care I recommend either Qhemet Biologics Alma/Olive heavy cream or Castor oil both are great at sealing in moisture and protecting ends. Also since you just got a relaxer you will want to do a weekly Medium strength protein conditioning (Lustrasilks Herbal cholestorl or Aphogee 2min Keratin *Both can be found at Sally's) + a moisturizing conditoner (Kenra Moisturizing conditioner). Also adding honey and olive to any deep conditioner ups the moisturizing benefits. You will also need to do a monthly Heavy protein treatment (Jherri Redding 100% protein can be found at Sally's). As far as maintaining the style at night you can tie the hair down with a scarf. And on your wash day either do a roller set or allow the hair to airdry before flatironing so that you aren't using too much heat. HTH