Worried my faith isn’t real

Salam alaikum, I’m kind of going through an existential crisis after hearing that you might think you believe but you're actually just lying to yourself and you might not actually be a believer. Lately I've noticed I've been more avoidant about religious topics even though I’m somewhat practicing, I’m not perfect but I have daily habits, I pray and all that, I try to talk to Allah, so I don't get why this is happening. For a while there’s been this annoying voice in my head when I listen to religious talks or reminders that just argues with everything-even Qur’anic verses. Plus I’m paranoid about whether my prayers and wudu are valid, so I keep repeating things and it’s exhausting. It’s like I believe in Islam but I'm also pushing it away at the same time, I don’t know how to explain it? I feel awful saying this, but the arguments for Islam make sense, yet my mind or heart kind of rejects it-but also not, I’m still making du’a to Allah, so I’m confused. One thing that really scared me was when everyone was talking about some doomsday prediction last year, I started feeling scared too. I don’t believe in those other faiths, but I still felt that fear, so I can’t comfort myself by saying I’m not a hypocrite just because I’m scared of being one. My emotions keep swinging, one minute I’m okay, next I’m about to cry from fear. It doesn’t feel like just whispers from shaytan, I think it’s something deeper, something wrong with my iman and I can’t figure it out. Basically I think I believe, but it feels like I don’t, I can’t use fear of hypocrisy as a test because I got scared by other beliefs, I don’t know what’s happening to my faith. Please forgive how messy this is, I can’t explain properly and my thoughts are all over the place, I just don’t know what’s going on.