Nope,
maybe dig it out to be 100 dp evenly or so...mesh and fancy stuff not really necesary but will help it last the years.
Have you kerbs or walls around to act as a form, if not lay some timbers and fix them in place. If the level is an issue use a spirit level to mark around the edges tghe same finish level all round. Pick the point where the new conc meets the existing as the datum.
tip the cement out on to a sheet of ply or plastic etc, mix it say 1 : 4 with cleanish stone and sand and add water til it looks right , mix around with shovel and throw in. Level with a pice of timber. G
Or hire a mixer if lazy!