2018 Honda Civic Car trouble

Hi, really need some advice. I have a 2018 Honda Civic with about 80,000miles. Never really had any issues before but on Friday I got some gas and afterwards my car was doing something weird when I would accelerate. Basically everytime I tried to hit the gas to go, my car would kind of pull back, I’m not sure exactly how to describe it but it felt like my car was being pulled back. I ended up making it to work and everything was fine but that afternoon when I tried to leave my car was not fine. I tried to start it and my engine turned over but then stalled about 5 second after. Both my battery and oil light came on the dash. I went to get a new battery and alternator since that’s what we thought it was from reading online. Switched both out today and still doing exactly the same thing but I tried to rev the engine before it cut off and white smoke came from my exhaust and it cause the engine to stall faster. I guess i’m just looking for advice on where to go next.. thinking maybe the fuel pump? Not really sure but if anyone has any suggestions/ questions greatly appreciated!