How to live a healthy, balanced relationship?

I am in a very happy relationship and it is the first healthy one in my life. I have finally been able to leave my past unhealthy relationships behind and chose a man who truly treats me well. But lately I find my past haunting me down in terms of self doubt. For example when I don’t see him for a few days and he doesn´t message or call me- I get upset or angry because I want to be in a relationship where I am in touch with my partner every day and I have told him that. He however doesnt follow up on my wish all the time and it bothers me. I just don’t know what to do. Find a solution in the middle? Accept that he doesnt enjoy texting?
I also get very upset when he tells me we can’t see each other for a week or 2 weeks because he’s busy. i really struggle being away from him.

I want to be able to love him the way he is, I want to stop doubting myself (I keep thinking thoughts like- if I call him, he is not interested in talking to me), I want to be able to express my feelings and wishes to him but not overreact when his response is not exactly what I wished for. lately I have found myself overreacting and I know that this is not very attractive. I want to spend more time with him and I want him to want to spend more time with me, but I keep being the one making all the arrangements. What can I do to live a balanced healthy and loving relationship?