god cannot interfere with free will which inherently means his existence cannot be proved. that would rather bias things for us, dont you think?
the bible explains your questions and provides the answers you seek. the things in your way are twofold. first is believing what others say about the bible and god - most are liars and the rest are deceived. second is that god looks on the heart so he already knows who he is dealing with - it is you who has to find out about him.
so how do you get gods attention? do something completely out of the ordinary... actually obey him!