What we have to do after doing an act of kufr

I have done an act of kufr after realising it I have recited shahada 3 times and asked for forgiveness I have also promised to allah that I will not repeat it, does it is enough or I have to do something else , can I now continue as a muslim ,how we know allah has forgiven us Please answer I am scared can I marry a muslim after repeating or can I lead a normal life as a muslim after repeating