you have to do what works for you but I would have done a slow transition first with a couple visits with mom or dad and then start with being alone for an hour or two with you.
I had a little boy who cries for three weeks straight it was frustrating but now he's great and I am so glad we stuck it out.
Perhaps though if a slow transition doesn't work you could suggest a nanny like a PP said or a daycare centre. at a centre she would pick up on the language much quicker