Sharing Our Innermost Thoughts

one big trouble i am in. honestly need your advice. my dad was out of town, it was only me and my mom at home. one day i sneaked out with the car late night, went out for small dirve, everything went well, and while i returned back and was entering the gate, the car lower part got dashed to the gate and there are few huge scratches and little damages. i thought maybe i would not say and once they find out they might think it happened somewhere. yesterday it was raining so mom asked me to park it inside, she came down along with me and at that time she noticed it. today morning she asked dad he was like i did not do maybe I did when i took it out. i have defended myself that i justtook it to a round outside few days ago and did not drive. my mom is doubtful on me. i donot want to tell that i did not do so firmly, because if they further investigate it might be known as to what happened. and sadly watchman saw what happened, but that guy was new to the job and i told him donot tell anything. i just do not know what to do and my dad is about to reach home. even if they think that i have done it that is okay but i dont want them to know that i sneaked out and thats how it happened. i cant say the truth. thank you