Was driving around today fine and then decided to let my mate have a drive for a little while so he decided to do a bit of a launch start and it seemed like the clutch wasn't fully engaging from the start, into 2nd and only got there eventually when he let the power off in 2nd for a bit, it engaged after that for a bit.

I wasn't quite too sure what was happening but I told him to take it a bit easy on the next time around, obviously he didn't understand the meaning of easy and did the same kinda launch again but this time it stayed unengaged and I had to get a RAC truck to tow it home since it would not move anywhere.

At first it didn't want to go into any gear (at a stand still) and then when it decided to go into gear pushing the clutch in and out was doing nothing, it was revving the same if the clutch was in or out.

Hopefully ill be taking it into STechnic as soon as possible but would anyone have any insight of what the problem may be?
Also I had the clutch replaced around 5 months ago.