Am I too young to be this content?

I feel really strange lately. Like very content with things. Turned 21 and I am finally going where I want to in life. Even with all the struggles I’ve been through and getting past it. I am just oddly happy. It is as if you could throw anything at me now, but it wouldn’t matter. I know where I am going.

I feel like I can stand on my own two feet as a person.Never felt like this before. Have other people felt like this? Am I too young to be sure of myself like this?

I just wanted to add that I am happy with obtaining the goals that I have. However I guess it is like I don’t want to become complacent just because I am in a good place right now. For a lack of better words I’m worried I won’t stay hungry. I want to continue to chase things. Yet I feel lost in that way ,but content where I am right now….