mate i am 30 and over the years me and my mother have fought over a lot of things mainly due to different ways i approach things so heres my advice buy some flowers and deliver to her door with a note or leave her a voice message explaining that you overreacted and that you wish to make amends for your use of harsh words and that you never meant to hurt her in any way. and if that does not work wait a month or so then try to reconnect but make it clear that the things you said were out of line and own up to your behaviour and if she said things that were hurtful to you ask her to sit down with you and go over the things that were said and explain how each of those words cut you and ask her how she felt about the things you said i know this is kinda of a gay way to deal with it but trust me ,mothers when hurt can disown you in a heart beat as this is what happened between my mother and sister and they don,t talk at all my mum does not even aknowledge my sister now so try very hard to fix it and good luck mate wish you the best.