what did I do this time?, could it be the clutch? Options

[6strngs]

yeah, so yesterday when I was driving, I noticed it extremely hard to push the shifter into a gear and when it did go in it would grind occasionally. well, I let it go overnight, and drove today and it was fine. then on my way home from work tonight, I started the car, started to move, shifted to second fine, then came to a stop at the end of the driveway, when I pushed in the clutch it felt kinda shaky. then I could not put it in gear. I pumped the clutch a few times and still nothing. it wouldn't go into any gear. after about 5 minutes I finally was able to force it into 1st. I started going and then pushed it into second with some difficulty. lucky for me it was 11 o clock at night, so there weren't many people around and all the lights stayed green for me, so I drove all the way home in second never going more than 30 mph, lol. anyway, I was wondering what this could be... on my way home, I noticed if I pressed in the clutch, the rpms dropped slower than they usually do, and with the clutch fully pressed in if I rev the engine, the my speed would inrease ever so slightly... this sounds like the clutch to me, but I want to know for sure. I knew the clutch has been slipping lately, and I knew it would need replacing sometime, I'm just wondering if I killed it once and for all, or if this is something else not related to the clutch.