I talked to my doctor today about this same feeling.
I've spent my whole life searching for something to make me happy, yearning for the life I knew I was supposed to be living. I wasn't happy and I didn't know why or what to do about it. I felt like I wanted to travel and be a different person, walking a different path in this world. I poured myself into this hobby and that hobby before getting bored and moving on. I was finally able to get distracted by marriage, work, and starting a family, but it came back around and kicked me in the butt every year or so.
I still have problems in my life, who doesn't. Bills, headaches, scheduling conflicts, family, lol. But now I feel like I'm finally getting to be who I was meant to be. There's no more searching, there's no more tears being shed for the unknown path that I should've been walking. I know I am exactly where I need to be, doing exactly what I need to be doing. And all I want to do is raise my daughter and continue being the happy person that I've discovered hiding inside myself after over 3 decades of keeping her unwittingly locked away inside me.