Am I being too harsh on my hair?

So here’s me and my hair. I love the cut and I love wearing it wavy like this, it’s easy to style and take care off. Currently I’m washing my hair every other night, I can go about two days before it really gets too gritty and greasy for my liking. I do use dry shampoo on day 2 and I also do a cute bun or ponytail on day 2. I heat style every other day. Is that too much? I keep my heat low and it doesn’t take me a prolonged period of time to style it with heat so I feel like it isn’t so bad. I don’t know though!