Q: electrical or something i dont know.

So i bought my first z yesterday and i knew there was a slight powersteering leak but i drove it home and it was fine ran great shifted great. Then the next day today i noticed the transmission has a very slight leak and i drove alot today in stop and go traffic (5 speed manual) and the clutch pedal was slightly depressed after about 3 hours of and on driving and i would have to pull the clutch up to engage completly. Then it got to where it was super hard to shift and then i was in 2nd going about 25 and it lost all motor power like i tried to floor it and it probably took 6-7 seconds to get to 30 so i stopped and turned the car off. later after probably an hour i came out and opened the door and the alarm started going off and i couldnt stop it so i drove home and it was completly fine other than the alarm going off and i got home and ripped out the security system like unplugged it so it stopped and then just about 30 mins ago i was with my dad and we were on the high way and did so

My car has 150000 miles.
My car has a manual transmission.