Thanks for the replies, KarenR, Cadet, chatterbug, sgctxok.
@chatterbug: selling the house for paying a nanny is an original idea I hadn't thought of, thanks. Too bad that my share of the net worth would not last long considering salaries in my country.
@sgctxok: your recommendation struck a chord in me. Due to exam preparation and job start I have basically been away from family life for 1.5 years. The longing for my kids doesn't get any "better". I won't be able to realize the move back home quickly but I'll start preparing it.