When your own past self made a choice you're not sure fits anymore

Assalamu alaikum. I'm in a weird headspace with my iman. Some days I feel rock-solid in my deen, like I'm fully convinced and connected. Then other times I catch myself wondering if I'm basically an atheist deep down. I put on hijab on my own because I genuinely believed it was fard. But now, months later, I sometimes feel like a younger version of me made that decision and I'm just stuck carrying it. I don't feel super oppressed by it or anything, but it doesn't always feel like mine anymore. Underneath all this, there's this big question: should I be chasing the dunya life I want, or the akhirah I say I believe in? How do I tell if this is just normal waswas or if my beliefs are actually shifting?