It was probably best that you left your T if you didn't feel validated. I do hope you're able to find one who can met your needs in a way you like.
My old-T would validate my feelings. A lot of time it was simple like, "That most have been terrible to live through". Other times she would make an 'awww...' sound when I would talk about my feelings and hardships. Above all, I knew she was coming from a place of sympathy.