Reposting this from another car repair sub bc I just need some help.

Mazda cx5, 2018.

I got into my car on Wednesday and noticed a faint smell of gas. I thought it’d clear up, but about 5 mins into my drive, I realized the gas smell was BAD and getting worse. I u-turned back home, all within maybe 10 min, and upon arriving in my driveway there was some oil/fuel (?) leaking behind the car AND it looked like there was a tiny bit of white smoke coming from under the hood (please note: I’m not entirely sure of this because I was freaked out and panicking. My roommate says no white smoke, I said yes, small puffs of white smoke).

There was no problem with the car when I used it the day before and there was no significant change in fuel level.

Obviously, I need a professional to see the vehicle to assess the problem, but honestly, I’m scared to start the car and cause a fire. I’m dumb about this - is that a risk?

Can I start the car to further take a look or is this an issue that calls for a tow truck?

I will take any advice or potential diagnoses on the problem as I’m clearly clueless.

Thank you.