Selma, concrete can be brought back to level and holes can be filled. The leveling part can be expensive but still not as much as for new installation. The cost numbers depend a lot on your situation. Call a couple of contractors who do the pressure pumping to get a feel for cost and then check their references well.
With high latex content concretes, you can fill small holes and level very small depressions yourself. At most, if this really is a DIY sized project, you might want to rent a concrete mixer from a home center. Be sure that you follow all the instructions, particularly those that pertain to adhesion with your old concrete.