Hey everyone im new , i used to own a civic, but my current car is a 1990 cavalier z24, 3.1 liter 5 spd.

Problem started this morning, i gunned it from first to 2nd, and then i wanted to gradually put it into third and it barely got into gear, so i pulled over,
tried to put it into first again, no dice, turned off car, went into first fine, turned car back on, started shuddering when i took off normally, shift into 2nd was hard also, had 2 force it, clutch is one month old, and doesnt slip even after this problem started,

Also, when i start car in 1st it starts moving, with clutch in?!?

friend had same problem , started happening month after his clutch was done, turned to be clutch cylinder? PLEASE HELP<

 

Could be your clutch slave cylinder, if its a hydro clutch. But your clutch could also be shot. Lets hope for the first one.