Newbie here

Hello everyone. I'm not totally sure I belong here since I don't think my hair is very long or will ever be. But I am trying. I would really love some advice from others with fine thin straight hair. Maybe that's my problem?
I guess my length is about 3 inches till BSL and it is 1bFi. I have been lurking a little and while haven't seen any other posters with hair like mine.
I think I have always taken pretty god care of my hair. I never blow-dry or heat style. I do live in a pretty dry environment. And i dye sometimes, but am thinking of switching to henna. I use Kiss My Face mistreated shampoo, because I find it's gentle and I like the way it smells, and condition with Panteen extra moisture for 5 mins or more about every other day.
This is the longest my hair has ever been and I've tried a few times. Is it what you would call "terminal"? Is there hope for me? Thanks in advance!