1996 Lexus es300 car problem?

[525 B]

Alright my car seems like it doesn't have power anymore, when I put it on drive it barely even moves. My friend told me this was a gas issue so I started putting premium again and it started to drive fine again but since the gas price is so high now I went back to regular gas. This is a 1996 lexus es300 130k miles. So now I was driving and then I was pressing on gas and all it was doing was reving and the car was not moving.. I shut off the car and turn it back on and put the gear to 2nd or L and it started moving slowly and then it moved again then I shut off the car and tried again and it didn’t move well this is scary so I stopped the car and parked it. While the car was on parked I notice the car was moving so I jumped back in and pull the E brakes. The transmission is like all burned out and is black.
I don’t know what to do right now because I was pretty far from home and it’s about a 2hr drive back so I parked the car there and me and my buddy took the bus back. Well I’m planning on going back tomorrow to check on my car, what should I do ? What you think is the problem with the car ? I am going to have to try to drive it around to any mechanic shop around there and try to get it fixed. Since this car is old I already have a new car I’m planning on trying to sell it to someone around that area once It is fixed or maybe just sell it like that. I have to bring my car title and sign it over to the new owner. Thank you for hearing me out,.

 

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this definately is the transmission.. check the fluid level first if it needs about 3 or 4 quarts put it in and it should go.. this did not happen all at once.. if you checked the transmission level when this first happined you would not have gotten stuck.. ok if it was low you can get in and drive.. it.. but if it does not go you have to call a transmission repair shop.. they will tow it to the shop. and rebuild the transmission.. but i got a feeling it is just low fluid good luck..