need advice a.s.a.p

This is always tough. First you should find out why exactly the mother doesn't want you dating and see if its something you can fix. If not, well, from experiences I have had, and seen, it will only turn out ugly if you try to see the girl, so I would say, wait, be patient and see if you can change the mother's mind over time. Hard to do I am sure, but it may work.