first i would check that the problem isnt just loose bolts. one is a torx head bolt on the side of the door, the other is a 10mm bolt that you need to reomve the door card to access.
if the handle is damaged the best thing to do is replace it with a scrapyard handle (£10 max)
its an easy job, the only difficulty is getting the 2 rods to connect to the handle, its a bit fiddly. make sure you dont lose or damage the plastic clips that secure the rods to the handle.