2019 Hyundai Elantra

I was driving down a main highway, approaching a busy intersection preparing to turn left... I had a green light without a green arrow and had quite a bit of distance/time between myself and any approaching vehicle so I went ahead and proceeded. Just as I entered the intersection, all of the sudden my car stopped responding to my pressing on the gas pedal. The motor was very loud and dry sounding, and the RPM gauge was running abnormally high but the car itself, was barely moving. I continued trying to give it gas, even checked to see if something had knocked it out of gear (that was NOT the case)! Cross-traffic began to approach the intersection so I really started to work on the gas pedal, pumping it and when that failed, I mashed the gas all the way to the floor and finally just before I was about to be hit the car down the pedal and finally the car began to move!! It has been doing some hesitating for a while now but it barely made it out of the intersection this time and that was terrifying!! I have it in the shop now waiting to see what the problem is but this needs reporting. I do everything I'm supposed to with maintaining my car... oil changes, spark plugs, fluid checks and it has less than 50,000 miles so that shouldn't have happened!