can someone tell me what wrong???????? on 1992 Lexus SC300

i have a 92 sc300 2jzge its a manual can anyone give me advice on what to do whenever i step on the clutch an start the motor my car rolls forward and it in neutral and when i put it in gear it wont go but it would reverse im clueless any one have any advice

3 answers
check clutch operation, sound like you are not disengaging, first check clutch hydrolics for leaks or low levels
YOU MAY BE ON AN INCLINE, WHEN IT NUETRAL. PUT THE bRAKE ON.
Slave cylinder....