its not clutch it was done for the mot

and it only does it when im moving and trying to get more speed, i can put my foot flat too the floor and it gets worse, if i just put a little power on while driving its drivable and seems theres still nothing wrong with reving the car when its stood still absolute no holding back with revs then.
ive put in the wanted that i need a new dcat, hopefully this will sort it, if not im selling the car :/ just cant afford to keep spending and spending and would sooner let someone know what there doing sort it heh