RIght im sure i need a new clutch i get spiking after 3,500rpm and I get a weird noise when i left up the clutch like a eeeee which my mate says is something like the grease on the clutch disc has gone.

But the question is.

When I start up the car it go to 1,000 and then 500 then 1,000 it seems to struggle and the car vibrates, its like this for about 20seconds. When I put my foot a bit on the gas it doesnt go up as it should it like struggles after i release the gas. And when starting the ignoition feels like it takes about 5 seconds to start.
Low batt???