try herbal essence or dove shampoos and conditioners. herbal the tousled type works really well my hair turned really curly at puberty but was straight and thick until then then it got really curly and thin
but it's okay if I change things up every once and a while I'll go for the curly shampoo to the tousled shampoo and alternate it every once in a while to give my hair some much needed change and hydration. the dove hydrates really well but the herbal essence makes my hair look great. good luck!!!!!!