Frustrated

Y’all I am so frustrated. I bought my 2021 Jeep grand Cherokee Summit in February 2023 in May of the same year the start /stop button started coming on saying that it wasn’t working followed then by the check engine light. I have had it in and out of service at the Jeep dealership since May 2023 and I still drive around with my check engine light on and the start/stop light on. They will go off at times, but come right back on. Then I started noticing every time I put gas in my car, it shakes violently for good probably 15 minutes now occasionally it will shake just upon idling. I’m at my wits end with the dealership. I don’t know what else to do and I’m pretty sure you should not be driving around with the check engine light or any other light on.